Birkhäuser jan 1990 (35 resultados)

Taschenbuch. Condición: Neu. Neuware - 1. 1 The problem and the approach The model developed here, which is actually more a collection of com ponents than a single monolithic structure, traces a path from relatively low-level neural/connectionistic structures and processes to relatively high-level animal/artificial intelligence behaviors. Incremental extension of this initial path permits increasingly sophisticated representation and processing strategies, and consequently increasingly sophisticated behavior. The initial chapters develop the basic components of the sys tem at the node and network level, with the general goal of efficient category learning and representation. The later chapters are more con cerned with the problems of assembling sequences of actions in order to achieve a given goal state. The model is referred to as connectionistic rather than neural, be cause, while the basic components are neuron-like, there is only limited commitment to physiological realism. Consequently the neuron-like ele ments are referred to as 'nodes' rather than 'neurons'. The model is directed more at the behavioral level, and at that level, numerous con cepts from animal learning theory are directly applicable to connectionis tic modeling. An attempt to actually implement these behavioral theories in a computer simulation can be quite informative, as most are only partially specified, and the gaps may be apparent only when actual ly building a functioning system. In addition, a computer implementa tion provides an improved capability to explore the strengths and limita tions of the different approaches as well as their various interactions.…

sonst. Bücher. Condición: Neu. Neuware -Alvar Aalto, 1898 in Kuortane in Finnland geboren, ist eine der letzten Persönlichkeiten der großen Architekturgeneration des 20. Jahrhunderts. Seine Bauten, vom Städtebau bis zum einfachen Wohnhaus, wirken als einheitliche Organismen. Formale Architekturtheorien liegen ihm fern. Der Weg eines jeden Bauwerkes ist vom ersten flüchtigen Skizzenstrich bis zur Übergabe an den Bauherren faszinierend und ganz von der Persönlichkeit des Architekten bestimmt. Alles bleibt lebendig und in Bewegung, wirkt ungezwungen und natürlich, gleichsam gewachsen aus der Umgebung. Das besondere Gefühl für die Wichtigkeit einzelner Bauteile und Bauabschnitte macht es möglich, auch aus bescheideneren Bauaufgaben eine Vielfalt an individueller Prägung herauszuholen. So gehen auch Möbel Lampen, Vorhänge und alle die Dinge, die ein Haus erst bewohnbar machen, zum größten Teil aus den Entwürfen und Experimenten Aaltos hervor. Die Einheit der Idee, der Form und der Lebensweise bildet das zentrale Thema seines Schaffens.De Gruyter GmbH, Genthiner Straße 13, 10785 Berlin Deutsch.…

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -These are the lecture notes of the seminar 'Mathematische Theorie der finiten Element und Randelementmethoden' organized by the 'Deutsche Mathematiker-Vereinigung' and held in Dusseldorf from 07. - 14. of June 1987. Finite element methods and the closely related boundary element methods nowadays belong to the standard routines for the computation of solutions to boundary and initial boundary value problems of partial differential equations with many applications as e.g. in elasticity and thermoelasticity, fluid mechanics, acoustics, electromagnetics, scatter ing and diffusion. These methods also stimulated the development of corresponding mathematical numerical analysis. I was very happy that A. Schatz and V. Thomee generously joined the adventure of the seminar and not only gave stimulating lectures but also spent so much time for personal discussion with all the participants. The seminar as well as these notes consist of three parts: 1. An Analysis of the Finite Element Method for Second Order Elliptic Boundary Value Problems by A. H. Schatz. II. On Finite Elements for Parabolic Problems by V. Thomee. III. I30undary Element Methods for Elliptic Problems by V. L. Wendland. The prerequisites for reading this book are basic knowledge in partial differential equations (including pseudo-differential operators) and in numerical analysis. It was not our intention to present a comprehensive account of the research in this field, but rather to give an introduction and overview to the three different topics which shed some light on recent research. 268 pp. Englisch. …

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The need for improved mathematics education at the high school andcollege levels has never been more apparent than in the 1990s. Asearly as the 1960s, I. M. Gel'fand and his colleagues in the USSRthought hard about this same question and developed a style forpresenting basic mathematics in a clear and simple form that engagedthe curiosity and intellectual interest of thousands of high schooland college students. These same ideas, this same content, unchangedby over thirty years of experience and mathematical development, areavailable in the present books to any student who is willing to read,to be stimulated and to learn.'The Method of Coordinates' is a way of transferring geometric imagesinto formulas, a method for describing pictures by numbers and lettersdenoting constants and variables. It is fundamental to the study ofcalculus and other mathematical topics. Teachers of mathematics willfind here a fresh understanding of the subject and a valuable path tothe training of students in mathematical concepts and skills. 84 pp. Englisch.…

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Ever since its introduction around 1960 by Kirillov, the orbit method has played a major role in representation theory of Lie groups and Lie algebras. This book contains the proceedings of a conference held from August 29 to September 2, 1988, at the University of Copenhagen, about 'the orbit method in representation theory.' It contains ten articles, most of which are original research papers, by well-known mathematicians in the field, and it reflects the fact that the orbit method plays an important role in the representation theory of semisimple Lie groups, solvable Lie groups, and even more general Lie groups, and also in the theory of enveloping algebras. 244 pp. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The analysis of parameter-dependent nonlinear has received much attention in recent years. Numerical continuation techniques allow the efficient computation of solution branches in a one-parameter problem. In many cases continuation procedures are used as part of a more complete analysis of a nonlinear problem, based on bifurcation theory and singularity theory. These theories contribute to the understanding of many nonlinear phenomena in nature and they form the basis for various analytical and numerical tools, which provide qualitative and quantitative results about nonlinear systems. In this issue we have collected a number of papers dealing with continuation techniques and bifurcation problems. Readers familiar with the notions of continuation and bifurcation will find recent research results addressing a variety of aspects in this issue. Those who intend to learn about the field or a specific topic in it may find it useful to first consult earlier literature on the numerical treatment of these problems together with some theoretical background. The papers in this issue fall naturally into different groups. 228 pp. Englisch.…

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Man sollte weniger danach streben, die Grenzen der mathe matischen Wissenschaften zu erweitern, als vielmehr danach, den bereits vorhandenen Stoff aus umfassenderen Gesichts punkten zu betrachten - E. Study Today most mathematicians who know about Kronecker's theory of divisors know about it from having read Hermann Weyl's lectures on algebraic number theory [We], and regard it, as Weyl did, as an alternative to Dedekind's theory of ideals. Weyl's axiomatization of what he calls 'Kronecker's' theory is built-as Dedekind's theory was built-around unique factor ization. However, in presenting the theory in this way, Weyl overlooks one of Kronecker's most valuable ideas, namely, the idea that the objective of the theory is to define greatest com mon divisors, not to achieve factorization into primes. The reason Kronecker gave greatest common divisors the primary role is simple: they are independent of the ambient field while factorization into primes is not. The very notion of primality depends on the field under consideration-a prime in one field may factor in a larger field-so if the theory is founded on factorization into primes, extension of the field entails a completely new theory. Greatest common divisors, on the other hand, can be defined in a manner that does not change at all when the field is extended (see 1.16). Only after he has laid the foundation of the theory of divisors does Kronecker consider factorization of divisors into divisors prime in some specified field. 184 pp. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -A so-called 'effective' algorithm may require arbitrarily large finite amounts of time and space resources, and hence may not be practical in the real world. A 'feasible' algorithm is one which only requires a limited amount of space and/or time for execution; the general idea is that a feasible algorithm is one which may be practical on today's or at least tomorrow's computers. There is no definitive analogue of Church's thesis giving a mathematical definition of feasibility; however, the most widely studied mathematical model of feasible computability is polynomial-time computability. Feasible Mathematics includes both the study of feasible computation from a mathematical and logical point of view and the reworking of traditional mathematics from the point of view of feasible computation. The diversity of Feasible Mathematics is illustrated by the. contents of this volume which includes papers on weak fragments of arithmetic, on higher type functionals, on bounded linear logic, on sub recursive definitions of complexity classes, on finite model theory, on models of feasible computation for real numbers, on vector spaces and on recursion theory. The vVorkshop on Feasible Mathematics was sponsored by the Mathematical Sciences Institute and was held at Cornell University, June 26-28, 1989. 364 pp. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - Print on Demand Titel. Neuware -These are the lecture notes of the seminar 'Mathematische Theorie der finiten Element und Randelementmethoden' organized by the 'Deutsche Mathematiker-Vereinigung' and held in Dusseldorf from 07. - 14. of June 1987. Finite element methods and the closely related boundary element methods nowadays belong to the standard routines for the computation of solutions to boundary and initial boundary value problems of partial differential equations with many applications as e.g. in elasticity and thermoelasticity, fluid mechanics, acoustics, electromagnetics, scatter ing and diffusion. These methods also stimulated the development of corresponding mathematical numerical analysis. I was very happy that A. Schatz and V. Thomee generously joined the adventure of the seminar and not only gave stimulating lectures but also spent so much time for personal discussion with all the participants. The seminar as well as these notes consist of three parts: 1. An Analysis of the Finite Element Method for Second Order Elliptic Boundary Value Problems by A. H. Schatz. II. On Finite Elements for Parabolic Problems by V. Thomee. III. I30undary Element Methods for Elliptic Problems by V. L. Wendland. The prerequisites for reading this book are basic knowledge in partial differential equations (including pseudo-differential operators) and in numerical analysis. It was not our intention to present a comprehensive account of the research in this field, but rather to give an introduction and overview to the three different topics which shed some light on recent research.Springer Nature c/o IBS, Benzstrasse 21, 48619 Heek 280 pp. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - Print on Demand Titel. Neuware -'The Method of Coordinates' is one volume in a series of books thatpresent basic mathematics in a clear and simple form. The bookdescribes a way of transferring images into formulas, describingpictures by numbers. The content is fundamental to the study ofcalculus and other mathematical topics. All through this volume, onefinds a careful description of the step-by-step thinking process thatleads up to the correct definition of a concept or to an argument thatclinches in the proof of a theorem. High school students or teachersreading this book will learn an enormous amount of good mathematics.More importantly, they would also get a glimpse of how mathematics isdone.Springer Nature c/o IBS, Benzstrasse 21, 48619 Heek 84 pp. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -In the winter of 1978, Professor George P61ya and I jointly taught Stanford University's introductory combinatorics course. This was a great opportunity for me, as I had known of Professor P61ya since having read his classic book, How to Solve It, as a teenager. Working with P6lya, who was over ninety years old at the time, was every bit as rewarding as I had hoped it would be. His creativity, intelligence, warmth and generosity of spirit, and wonderful gift for teaching continue to be an inspiration to me. Combinatorics is one of the branches of mathematics that play a crucial role in computer sCience, since digital computers manipulate discrete, finite objects. Combinatorics impinges on computing in two ways. First, the properties of graphs and other combinatorial objects lead directly to algorithms for solving graph-theoretic problems, which have widespread application in non-numerical as well as in numerical computing. Second, combinatorial methods provide many analytical tools that can be used for determining the worst-case and expected performance of computer algorithms. A knowledge of combinatorics will serve the computer scientist well. Combinatorics can be classified into three types: enumerative, eXistential, and constructive. Enumerative combinatorics deals with the counting of combinatorial objects. Existential combinatorics studies the existence or nonexistence of combinatorial configurations. 204 pp. Englisch.…

Buch. Condición: Neu. This item is printed on demand - Print on Demand Titel. Neuware -0. A Theorem of Polynomial Algebra.- 1. The General Theory.- 2. Applications to Algebraic Number Theory.- 3. Applications to the Theory of Algebraic Curves.- References.Springer Nature c/o IBS, Benzstrasse 21, 48619 Heek 184 pp. Englisch. …

Taschenbuch. Condición: Neu. This item is printed on demand - Print on Demand Titel. Neuware -The analysis of parameter-dependent nonlinear has received much attention in recent years. Numerical continuation techniques allow the efficient computation of solution branches in a one-parameter problem. In many cases continuation procedures are used as part of a more complete analysis of a nonlinear problem, based on bifurcation theory and singularity theory. These theories contribute to the understanding of many nonlinear phenomena in nature and they form the basis for various analytical and numerical tools, which provide qualitative and quantitative results about nonlinear systems. In this issue we have collected a number of papers dealing with continuation techniques and bifurcation problems. Readers familiar with the notions of continuation and bifurcation will find recent research results addressing a variety of aspects in this issue. Those who intend to learn about the field or a specific topic in it may find it useful to first consult earlier literature on the numerical treatment of these problems together with some theoretical background. The papers in this issue fall naturally into different groups.Springer Nature c/o IBS, Benzstrasse 21, 48619 Heek 228 pp. Englisch. …

Buch. Condición: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Ever since its introduction around 1960 by Kirillov, the orbit method has played a major role in representation theory of Lie groups and Lie algebras. This book contains the proceedings of a conference held from August 29 to September 2, 1988, at the University of Copenhagen, about 'the orbit method in representation theory.' It contains ten articles, most of which are original research papers, by well-known mathematicians in the field, and it reflects the fact that the orbit method plays an important role in the representation theory of semisimple Lie groups, solvable Lie groups, and even more general Lie groups, and also in the theory of enveloping algebras.Springer Nature c/o IBS, Benzstrasse 21, 48619 Heek 244 pp. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - Print on Demand Titel. Neuware -A so-called 'effective' algorithm may require arbitrarily large finite amounts of time and space resources, and hence may not be practical in the real world. A 'feasible' algorithm is one which only requires a limited amount of space and/or time for execution; the general idea is that a feasible algorithm is one which may be practical on today's or at least tomorrow's computers. There is no definitive analogue of Church's thesis giving a mathematical definition of feasibility; however, the most widely studied mathematical model of feasible computability is polynomial-time computability. Feasible Mathematics includes both the study of feasible computation from a mathematical and logical point of view and the reworking of traditional mathematics from the point of view of feasible computation. The diversity of Feasible Mathematics is illustrated by the. contents of this volume which includes papers on weak fragments of arithmetic, on higher type functionals, on bounded linear logic, on sub recursive definitions of complexity classes, on finite model theory, on models of feasible computation for real numbers, on vector spaces and on recursion theory. The vVorkshop on Feasible Mathematics was sponsored by the Mathematical Sciences Institute and was held at Cornell University, June 26-28, 1989.Springer Nature c/o IBS, Benzstrasse 21, 48619 Heek 364 pp. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Herausgeberschaft Elisabeth Blum, Jesko Fezer, Günther Fischer, Angelika Schnell Die nicht zu Unrecht legendär genannte Schriftenreihe zu Geschichte und Theorie von Architektur und Städtebau wurde 1963 von Ulrich Conrads gegründet und seit den frühen 1980er Jahren zusammen mit Peter Neitzke herausgegeben. Sie ist mit inzwischen über 150 Bänden die umfangreichste deutschsprachige Buchreihe zu diesen Themen. Mit dem Tod der beiden langjährigen Herausgeber Ulrich Conrads (2013) und Peter Neitzke (2015) hat ein neues HerausgeberInnengremium seine Arbeit aufgenommen: Elisabeth Blum, Jesko Fezer, Günther Fischer, Angelika Schnell. Als künftige HerausgeberInnen versuchen wir auf Kurs zu bleiben. Die ursprüngliche Zielsetzung der Reihe, eine Bestandsaufnahme der baulichen und städtebaulichen Ideen und Realisierungen des 20. Jahrhunderts zu leisten, wurde bereits in herausragender Weise erfüllt. Die Bauwelt Fundamente repräsentieren geradezu die Ideengeschichte des Planens und Bauens jener Zeit bis in die Gegenwart hinein. Diese gilt es in die Zukunft hinein fortzuschreiben. In gleicher Weise besteht der zweite, direkt im Namen verankerte Anspruch der Reihe unvermindert fort: nicht Tagesmeinungen, sondern Fundamente - Verbindliches und Grundlegendes - aber auch Thesen- und Streitschriften zu den brennenden architektonischen und städtebaulichen Themen der Zeit zu veröffentlichen. Komplexe Zusammenhänge zu durchdringen und probeweise einzuordnen bildet die Voraussetzung fruchtbarer Diskurse und zukunftsfähiger Auseinandersetzungen. Die Bauwelt Fundamente-Reihe legt als Forum solcher Diskurse und Beiträge ihren Fokus unvermindert auf die Bereiche Architektur und Urbanismus, ergänzt durch die immer notwendige historische Aufarbeitung wichtiger Fragen und Texte und den Blick darüber hinaus in andere kulturelle und gesellschaftliche Gefilde. Eine stärker internationale Ausrichtung und der Wunsch nach mehr Autorinnen sind hierbei selbstverständlich. Die grafische Gestaltung der Reihe von Helmut Lortz wird in Bezug auf seine ursprünglichen Anliegen beibehalten: Wie sich das für eine Arbeitsbücherei gehört, bleiben die Bauwelt Fundamente einfach ausgestattet: Schwarz/weiß das Signet sowie die Bildmotive von Vorder- und Rückseite und der 11-Zeiler mit konzentrierter Information zum Inhalt. Damit wenden sich die Bauwelt Fundamente auch weiterhin an alle, die Anteil nehmen an der kulturellen und gesellschaftlichen Entwicklung, in deren Kontext Städte, Häuser und Dinge entstehen und die wiederum Kontexte schaffen für die Welt. 'Architekten hätten sich, heißt es - oder hofft man - immer schon, über die Grenzen ihres Berufs hinaus, für die Welt interessiert.' (1) (1) Peter Neitzke, Manuskript seiner Rede 'Nicht mit dem Rücken zur Gesellschaft' anlässlich der 50-Jahrfeier der Bauwelt Fundamente in Berlin, 2013 176 pp. Deutsch.…

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This volume is the second of the three volume publication containing the proceedings of the 1989 International Symposium on the Mathemat ical Theory of Networks and Systems (MTNS-89), which was held in Amsterdam, The Netherlands, June 19-23, 1989 The International Symposia MTNS focus attention on problems from system and control theory, circuit theory and signal processing, which, in general, require application of sophisticated mathematical tools, such as from function and operator theory, linear algebra and matrix theory, differential and algebraic geometry. The interaction between advanced mathematical methods and practical engineering problems of circuits, systems and control, which is typical for MTNS, turns out to be most effective and is, as these proceedings show, a continuing source of exciting advances. The second volume contains invited papers and a large selection of other symposium presentations in the vast area of robust and nonlinear control. Modern developments in robust control and H-infinity theory, for finite as well as for infinite dimensional systems, are presented. A large part of the volume is devoted to nonlinear control. Special atten tion is paid to problems in robotics. Also the general theory of nonlinear and infinite dimensional systems is discussed. A couple of papers deal with problems of stochastic control and filterina. vi Preface The titles of the two other volumes are: Realization and Modelling in System Theory (volume 1) and Signal Processing, Scattering and Operator Theory, and Numerical Methods (volume 3). 684 pp. Englisch.…

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This volume is the second of the three volume publication containing the proceedings of the 1989 International Symposium on the Mathemat ical Theory of Networks and Systems (MTNS-89), which was held in Amsterdam, The Netherlands, June 19-23, 1989 The International Symposia MTNS focus attention on problems from system and control theory, circuit theory and signal processing, which, in general, require application of sophisticated mathematical tools, such as from function and operator theory, linear algebra and matrix theory, differential and algebraic geometry. The interaction between advanced mathematical methods and practical engineering problems of circuits, systems and control, which is typical for MTNS, turns out to be most effective and is, as these proceedings show, a continuing source of exciting advances. The second volume contains invited papers and a large selection of other symposium presentations in the vast area of robust and nonlinear control. Modern developments in robust control and H-infinity theory, for finite as well as for infinite dimensional systems, are presented. A large part of the volume is devoted to nonlinear control. Special atten tion is paid to problems in robotics. Also the general theory of nonlinear and infinite dimensional systems is discussed. A couple of papers deal with problems of stochastic control and filterina. vi Preface The titles of the two other volumes are: Realization and Modelling in System Theory (volume 1) and Signal Processing, Scattering and Operator Theory, and Numerical Methods (volume 3). 684 pp. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The theory of hyperbolic groups has its starting point in a fundamental paper by M. Gromov, published in 1987. These are finitely generated groups that share important properties with negatively curved Riemannian manifolds.This monograph is intended to be an introduction to part of Gromov's theory, giving basic definitions, some of the most important examples, various properties of hyperbolic groups, and an application to the construction of infinite torsion groups. The main theme is the relevance of geometric ideas to the understanding of finitely generated groups. In addition to chapters written by the editors, contributions by W. Ballmann, A. Haefliger, E. Salem, R. Strebel, and M. Troyanov are also included.The book will be particularly useful to researchers in combinatorial group theory, Riemannian geometry, and theoretical physics, as well as post-graduate students interested in these fields. 300 pp. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - Print on Demand Titel. Neuware -In the winter of 1978, Professor George P61ya and I jointly taught Stanford University's introductory combinatorics course. This was a great opportunity for me, as I had known of Professor P61ya since having read his classic book, How to Solve It, as a teenager. Working with P6lya, who was over ninety years old at the time, was every bit as rewarding as I had hoped it would be. His creativity, intelligence, warmth and generosity of spirit, and wonderful gift for teaching continue to be an inspiration to me. Combinatorics is one of the branches of mathematics that play a crucial role in computer sCience, since digital computers manipulate discrete, finite objects. Combinatorics impinges on computing in two ways. First, the properties of graphs and other combinatorial objects lead directly to algorithms for solving graph-theoretic problems, which have widespread application in non-numerical as well as in numerical computing. Second, combinatorial methods provide many analytical tools that can be used for determining the worst-case and expected performance of computer algorithms. A knowledge of combinatorics will serve the computer scientist well. Combinatorics can be classified into three types: enumerative, eXistential, and constructive. Enumerative combinatorics deals with the counting of combinatorial objects. Existential combinatorics studies the existence or nonexistence of combinatorial configurations.Springer Nature c/o IBS, Benzstrasse 21, 48619 Heek 204 pp. Englisch.…

Buch. Condición: Neu. This item is printed on demand - Print on Demand Titel. Neuware -This volume is the second of the three volume publication containing the proceedings of the 1989 International Symposium on the Mathemat ical Theory of Networks and Systems (MTNS-89), which was held in Amsterdam, The Netherlands, June 19-23, 1989 The International Symposia MTNS focus attention on problems from system and control theory, circuit theory and signal processing, which, in general, require application of sophisticated mathematical tools, such as from function and operator theory, linear algebra and matrix theory, differential and algebraic geometry. The interaction between advanced mathematical methods and practical engineering problems of circuits, systems and control, which is typical for MTNS, turns out to be most effective and is, as these proceedings show, a continuing source of exciting advances. The second volume contains invited papers and a large selection of other symposium presentations in the vast area of robust and nonlinear control. Modern developments in robust control and H-infinity theory, for finite as well as for infinite dimensional systems, are presented. A large part of the volume is devoted to nonlinear control. Special atten tion is paid to problems in robotics. Also the general theory of nonlinear and infinite dimensional systems is discussed. A couple of papers deal with problems of stochastic control and filterina. vi Preface The titles of the two other volumes are: Realization and Modelling in System Theory (volume 1) and Signal Processing, Scattering and Operator Theory, and Numerical Methods (volume 3).Springer Nature c/o IBS, Benzstrasse 21, 48619 Heek 684 pp. Englisch. …

Taschenbuch. Condición: Neu. This item is printed on demand - Print on Demand Titel. Neuware -The theory of hyperbolic groups has its starting point in a fundamental paper by M. Gromov, published in 1987. These are finitely generated groups that share important properties with negatively curved Riemannian manifolds.Springer Nature c/o IBS, Benzstrasse 21, 48619 Heek 300 pp. Englisch.…

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -In the spring of 1987, I was in Havana, Cuba, where I was participating in planning a large-scale longitudinal study of the neurophysiological, neurochemical, and behavioral characteristics of cohorts of patients with cerebrovascular disease, depression, senile dementia, schizophrenia, or learning disabilities; and also part of this study were their first-degree blood relatives. This study was the outgrowth of a long-term project on the practical application of computer methods for the evaluation of brain electrical activity related to anatomical integrity, maturational development, and sensory, perceptual; -and cognitive processes, especially in chil dren. For many years, that project had been supported by the United Nations Development Program (UNDP), the National Scientific Research Center of Cuba (CNIC), and the Ministries of Public Health and of Education of Cuba. Since its inception, I had served as a technical advisor to the UNDP project. When the project began, I became acquainted with Dr. Jose M. Miyar Barrueco, who was at that time the Rector of the Medical School of the University of Havana. Because of his keen interest in the new computer technology and its potential utility in developing countries, we met from time to time during my visits. These occasional meetings continued after he became Secretary of the Cuban Council of State, so that he could remain apprised of progress and problems with which he might help. 608 pp. Englisch.…

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Since the seminal work of P. Anderson in 1958, localization in disordered systems has been the object of intense investigations. Mathematically speaking, the phenomenon can be described as follows: the self-adjoint operators which are used as Hamiltonians for these systems have a ten dency to have pure point spectrum, especially in low dimension or for large disorder. A lot of effort has been devoted to the mathematical study of the random self-adjoint operators relevant to the theory of localization for disordered systems. It is fair to say that progress has been made and that the un derstanding of the phenomenon has improved. This does not mean that the subject is closed. Indeed, the number of important problems actually solved is not larger than the number of those remaining. Let us mention some of the latter: - A proof of localization at all energies is still missing for two dimen sional systems, though it should be within reachable range. In the case of the two dimensional lattice, this problem has been approached by the investigation of a finite discrete band, but the limiting pro cedure necessary to reach the full two-dimensional lattice has never been controlled. - The smoothness properties of the density of states seem to escape all attempts in dimension larger than one. This problem is particularly serious in the continuous case where one does not even know if it is continuous. 620 pp. Englisch.…

Buch. Condición: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Since the seminal work of P. Anderson in 1958, localization in disordered systems has been the object of intense investigations. Mathematically speaking, the phenomenon can be described as follows: the self-adjoint operators which are used as Hamiltonians for these systems have a ten dency to have pure point spectrum, especially in low dimension or for large disorder. A lot of effort has been devoted to the mathematical study of the random self-adjoint operators relevant to the theory of localization for disordered systems. It is fair to say that progress has been made and that the un derstanding of the phenomenon has improved. This does not mean that the subject is closed. Indeed, the number of important problems actually solved is not larger than the number of those remaining. Let us mention some of the latter: ¿ A proof of localization at all energies is still missing for two dimen sional systems, though it should be within reachable range. In the case of the two dimensional lattice, this problem has been approached by the investigation of a finite discrete band, but the limiting pro cedure necessary to reach the full two-dimensional lattice has never been controlled. ¿ The smoothness properties of the density of states seem to escape all attempts in dimension larger than one. This problem is particularly serious in the continuous case where one does not even know if it is continuous.Springer Nature c/o IBS, Benzstrasse 21, 48619 Heek 620 pp. Englisch.…

Buch. Condición: Neu. This item is printed on demand - Print on Demand Titel. Neuware -In the spring of 1987, I was in Havana, Cuba, where I was participating in planning a large-scale longitudinal study of the neurophysiological, neurochemical, and behavioral characteristics of cohorts of patients with cerebrovascular disease, depression, senile dementia, schizophrenia, or learning disabilities; and also part of this study were their first-degree blood relatives. This study was the outgrowth of a long-term project on the practical application of computer methods for the evaluation of brain electrical activity related to anatomical integrity, maturational development, and sensory, perceptual; -and cognitive processes, especially in chil dren. For many years, that project had been supported by the United Nations Development Program (UNDP), the National Scientific Research Center of Cuba (CNIC), and the Ministries of Public Health and of Education of Cuba. Since its inception, I had served as a technical advisor to the UNDP project. When the project began, I became acquainted with Dr. Jose M. Miyar Barrueco, who was at that time the Rector of the Medical School of the University of Havana. Because of his keen interest in the new computer technology and its potential utility in developing countries, we met from time to time during my visits. These occasional meetings continued after he became Secretary of the Cuban Council of State, so that he could remain apprised of progress and problems with which he might help.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 608 pp. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Dieses Buch habe ich im Jahre 1989 geschrieben. Als ich es im Januar begann, stand ich unter dem Eindruck der Auseinandersetzungen um das Gesundheitsreformgesetz, das am 01.01.1989 in Kraft trat und eine Mauer errichtete zwischen einer Grup'pe von Sozialpolitikern der Regierungskoalition und den Bürgern, Arzten, Apothekern und Arz neimittelherstellern; eine Mauer zwischen der Staatsgewalt und den Betroffenen, denen eine staatliche Ordnung aufgenötigt wurde, deren Bezug zu den Interessen des Gemeinwesens sie nicht zu erkennen' vermochten. Einwände gegen das Gesundheitsreformgesetz während der Dis kussion im Gesetzgebungsverfahren wurden durch Regierungsvertre ter als Lobbyismus gebrandmarkt. Nun ist das Gesundheitsreformge setz als 5. Sozialgesetzbuch gegen den Willen der Mehrheit der Betrof fenen geltendes Recht. Da aber die Gesundheitsreform weitergehen soll, muß m. E. auch die Diskussion über das Gesundheitswesen fortgesetzt werden. Das Motto 'Bonna locuta causa finita' (wenn Bonn gesprochen hat, ist die Angelegenheit erledigt, in Anlehnung an ein geflügeltes Wort im klassischen Rom) paßt vielleicht in die Zeit der römischen Cäsaren, nicht aber in die Demokratie des 20. Jahrhunderts. Ich meine, daß man gerade jetzt über manches sprechen muß, das im Gesetzgebungsverfahren nicht zur Sprache kommen konnte. Denn dieses Gesetz zählt zu jenen nur schwer erkennbaren Mauem, die auch in der Demokratie die Bürger von den Herrschern trennen können. 308 pp. Deutsch.…

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware 101 pp. Deutsch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Dieses Buch ist als Einführung in einige der großen von zeitge nössischen Physikern behandelten Probleme gedacht. Ich setze voraus, daß der Leser mit jenen Aspekten des atomistischen Bildes der Materie vertraut ist, die billigerweise als Teil der Kul tur unserer Gegenwart bezeichnet werden können, aber nicht not wendigerweise einen technischen Hintergrund haben. Wo im Text Argumente zu spezifisch physikalischen Fragen vorgetragen werden, habe ich versucht, sie in sich abgeschlossen zu gestalten. Es wäre ganz unmöglich, in einem schmalen Buch wie diesem eine auch nur flüchtige Diskussion über all die verschiedenen Gesichtspunkte und Sachgebiete des als 'Physik' bezeichneten Fachs zu führen. So hatte ich notgedrungen nicht nur alle 'an gewancten' oder technischen Bezüge des Fachs beiseite zu las sen, sondern auch das ganze Feld der faszinierenden Fragen nach seiner Organisation und seinem gesellschaftlichen Charakter. Sogar über die als reine akademische Disziplin betrachtete Phy sik habe ich keine vollständige Berichterstattung angestrebt. Umfangreiche Untergebiete, wie die Atom-, Molekular-und sogar die Kernphysik, sind in diesem Buch überhaupt nicht vertreten, und andere, wie Astrophysik und Biophysik, werden nur kurz erwähnt. Nach einer Einleitung, die zu überblicken versucht, woher wir kommen und wo wir stehen, habe ich mich vielmehr auf vier Grundgebiete gegenwärtiger Forschung konzentriert, die, wie ich glaube, ziemlich repräsentativ für das Fach sind: Eleme tarteilchenphysik, Kosmologie, Physik der kondensierten Ma terie und 'Grundlagenprobleme' , und die, so kann man sagen, dem sehr Kleinen, dem sehr Großen, dem sehr Komplexen und dem sehr Unklaren entsprechen. 244 pp. Deutsch.…

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware 332 pp. Deutsch.