birkhäuser birkhäuser nov 2012 (280 resultados)

Taschenbuch. Condición: Neu. Neuware -This volume offers a selection of the best contributions by Russianscholars--historians and philosophers of science--to the EinsteinStudies industry, broadly construed. Most of the papers included herewere first published in Russian in the 'Einshteinovskiy Sbornik'series (Einstein Studies), the first of its kind, and initiated in1966 by Nobel Prize winner Igor Tamm. From 1966-1990, fourteen volumesof the 'Sbornik' were published by Nauka, the chief academic publisherin the former Soviet Union.The book explores such topics as the historical and foundationalissues in general relativity and relativistic cosmology, Einstein'scontributions to quantum theory of radiation, and the rise of Dirac'squantum electrodynamics. The volume also includes a detaileddescription of the physics colloquium Einstein established andcoordinated in 1912-1914 in Zurich.The contributors draw extensively on documentation previouslyunavailable to most scholars. Thus the materials from various Russianarchives shed new light on the famous exchange (regarding the firstevolutionary cosmological models) between Einstein and AleksandrFriedmann in the early 1920s and on the role of Boris Podolsky andVladimir Fock in the emergence of quantum electrodynamics. The littleknown correspondence between Einstein and a famous German pilot PaulEhrhardt suggests that, during World War I, Einstein was involved withaero- and hydrodynamics and thought about ways of improving airfoildesign. Other articles discuss new approaches to important questionsin the foundations of general relativity and cosmology.Historians, philosophers, and sociologists of science should beprepared to find much new and unexpected material in this engagingvolume presenting the best of the recent Russian scholarship in thefield. The book will be accessible to the general reader as well.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 336 pp. Englisch.

Taschenbuch. Condición: Neu. Neuware -to Deep Earth Electrical Conductivity.- Electromagnetic induction in the earth due to stationary and moving sources.- The new approach to global deep sounding.- The effect of the oceans and sedimentary cover on global magnetovariational field distribution.- The magnetospheric disturbance ring current as a source for probing the deep earth electrical conductivity.- The conductosphere depth at equatorial latitudes as determined from geomagnetic daily variations.- A deep geophysical study in the Baikal region.- A new telluric KCl probe using Filloux¿s AgAgCl electrode.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 100 pp. Englisch.

Taschenbuch. Condición: Neu. Neuware -This volume contains a selection of invited papers, presented to the fourth In Statistical Analysis Based on the L1-Norm and Related ternational Conference on Methods, held in Neuchatel, Switzerland, from August 4-9, 2002. Organized jointly by the University of Illinois at Chicago (Gib Bassett), the Rutgers University (Regina Liu and Yehuda Vardi) and the University of Neuchatel (Yadolah Dodge), the conference brought together experts whose research deals with theory and ap plications involving the L1-Norm. The conference included invited and contributed talks as well as a tutorial on Quantile Regression. This volume includes 36 refereed invited papers under seven headings. Part one deals with Quantiles in all their forms and shapes. It includes papers on quantile functions in non-parametric multivariate analysis, and empirical applications of quantile regression. Much of the development in this direction follows from the fundamental paper by Koenker and Bassett in 1978. Financial and Time Series A nalysis follows the section on quantiles. Part three concerns Estimation, Testing and Characterization. Part four, Deep in the Data, deals with issues related to data depth. Part five addresses Classification questions. The problem of Density Estimation and Image Processing is discussed in Part six, and finally Part seven presents two environmental applications. The contributions represent clear evidence of important research involving theo retical issues and applications associated with the L1-Norm. It is my hope that the articles contained in this volume and its predecessors, published in 1987, 1992, and 1997, will stimulate interest among researchers.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 472 pp. Englisch.

Taschenbuch. Condición: Neu. Neuware -These two volumes constitute texts for graduate courses in linear operator theory. The reader is assumed to have a knowledge of both complex analysis and the first elements of operator theory. The texts are intended to concisely present a variety of classes of linear operators, each with its own character, theory, techniques and tools. For each of the classes, various differential and integral operators motivate or illustrate the main results. Although each class is treated seperately and the first impression may be that of many different theories, interconnections appear frequently and unexpectedly. The result is a beautiful, unified and powerful theory. The classes we have chosen are representatives of the principal important classes of operators, and we believe that these illustrate the richness of operator theory, both in its theoretical developments and in its applicants. Because we wanted the books to be of reasonable size, we were selective in the classes we chose and restricted our attention to the main features of the corresponding theories. However, these theories have been updated and enhanced by new developments, many of which appear here for the first time in an operator-theory text. In the selection of the material the taste and interest of the authors played an important role.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 572 pp. Englisch.

Taschenbuch. Condición: Neu. Neuware -Dirac operators play an important role in several domains ofmathematics and physics, for example: index theory, ellipticpseudodifferential operators, electromagnetism, particle physics, andthe representation theory of Lie groups.In this essentially self-contained work, the basic ideas underlyingthe concept of Dirac operators are explored. Starting with Cliffordalgebras and the fundamentals of differential geometry, the textfocuses on two main properties, namely, conformal invariance, whichdetermines the local behavior of the operator, and the uniquecontinuation property dominating its global behavior. Spin groups andspinor bundles are covered, as well as the relations with theirclassical counterparts, orthogonal groups and Clifford bundles.The chapters on Clifford algebras and the fundamentals ofdifferential geometry can be used as an introduction to the abovetopics, and are suitable for senior undergraduate and graduatestudents. The other chapters are also accessible at this level so thatthis text requires very little previous knowledge of the domainscovered. The reader will benefit, however, from some knowledge ofcomplex analysis, which gives the simplest example of a Diracoperator. More advanced readers---mathematical physicists, physicistsand mathematicians from diverse areas---will appreciate the freshapproach to the theory as well as the new results on boundary valuetheory.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 228 pp. Englisch.

Taschenbuch. Condición: Neu. Neuware -The aim of this monograph is quite modest: It attempts to be a systematic exposition of all that appeared in the literature and was known to us by the end of the 20th century about the Laplace distribution and its numerous generalizations and extensions. We have tried to cover both theoretical developments and applications. There were two main reasons for writing this book. The first was our conviction that the areas and situations where the Laplace distribution naturally occurs is so extensive that tracking the original sources is unfeasible. The second was our observation of the growing demand for statistical distributions having properties tangent to those exhibited by the Laplace laws. These two 'necessary' conditions justified our efforts that led to this book. Many details are arranged primarily for reference, such as inclusion of the most commonly used terminology and notation. In several cases, we have proposed unification to overcome the ambiguity of notions so often present in this area. Personal taste may have done some injustice to the subject matter by omitting or emphasizing certain topics due to space limitations. We trust that this feature does not constitute a serious drawback-in our literature search we tried to leave no stone unturned (we collected over 400 references).Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 372 pp. Englisch.

Taschenbuch. Condición: Neu. Neuware -One of the great successes of twentieth century mathematics has been the remarkable qualitative understanding of rational and integral points on curves, gleaned in part through the theorems of Mordell, Weil, Siegel, and Faltings. It has become clear that the study of rational and integral points has deep connections to other branches of mathematics: complex algebraic geometry, Galois and étale cohomology, transcendence theory and diophantine approximation, harmonic analysis, automorphic forms, and analytic number theory.This text, which focuses on higher dimensional varieties, provides precisely such an interdisciplinary view of the subject. It is a digest of research and survey papers by leading specialists; the book documents current knowledge in higher-dimensional arithmetic and gives indications for future research. It will be valuable not only to practitioners in the field, but to a wide audience of mathematicians and graduate students with an interest in arithmetic geometry.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 308 pp. Englisch.

Taschenbuch. Condición: Neu. Neuware -An exploration of the theory of discrete integrable systems, with an emphasis on the following general problem: how to discretize one or several of independent variables in a given integrable system of differential equations, maintaining the integrability property This question (related in spirit to such a modern branch of numerical analysis as geometric integration) is treated in the book as an immanent part of the theory of integrable systems, also commonly termed as the theory of solitons. Most of the results are only available from recent journal publications, many of them are new.Thus, the book is a kind of encyclopedia on discrete integrable systems. It unifies the features of a research monograph and a handbook. It is supplied with an extensive bibliography and detailed bibliographic remarks at the end of each chapter. Largely self-contained, it will be accessible to graduate and post-graduate students as well as to researchers in the area of integrable dynamical systems.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 1124 pp. Englisch.

Taschenbuch. Condición: Neu. Neuware - 1. Historical Remarks Convex Integration theory, first introduced by M. Gromov [17], is one of three general methods in immersion-theoretic topology for solving a broad range of problems in geometry and topology. The other methods are: (i) Removal of Singularities, introduced by M. Gromov and Y. Eliashberg [8]; (ii) the covering homotopy method which, following M. Gromov's thesis [16], is also referred to as the method of sheaves. The covering homotopy method is due originally to S. Smale [36] who proved a crucial covering homotopy result in order to solve the classification problem for immersions of spheres in Euclidean space. These general methods are not linearly related in the sense that succes sive methods subsumed the previous methods. Each method has its own distinct foundation, based on an independent geometrical or analytical insight. Conse quently, each method has a range of applications to problems in topology that are best suited to its particular insight. For example, a distinguishing feature of Convex Integration theory is that it applies to solve closed relations in jet spaces, including certain general classes of underdetermined non-linear systems of par tial differential equations. As a case of interest, the Nash-Kuiper Cl-isometrie immersion theorem ean be reformulated and proved using Convex Integration theory (cf. Gromov [18]). No such results on closed relations in jet spaees can be proved by means of the other two methods.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 228 pp. Englisch.

Taschenbuch. Condición: Neu. Neuware -In some domains of mechanics, physics and control theory boundary value problems arise for nonlinear first order PDEs. A well-known classical result states a sufficiency condition for local existence and uniqueness of twice differentiable solution. This result is based on the method of characteristics (MC). Very often, and as a rule in control theory, the continuous nonsmooth (non-differentiable) functions have to be treated as a solutions to the PDE. At the points of smoothness such solutions satisfy the equation in classical sense. But if a function satisfies this condition only, with no requirements at the points of nonsmoothness, the PDE may have nonunique solutions. The uniqueness takes place if an appropriate matching principle for smooth solution branches defined in neighboring domains is applied or, in other words, the notion of generalized solution is considered. In each field an appropriate matching principle are used. In Optimal Control and Differential Games this principle is the optimality of the cost function. In physics and mechanics certain laws must be fulfilled for correct matching. A purely mathematical approach also can be used, when the generalized solution is introduced to obtain the existence and uniqueness of the solution, without being aimed to describe (to model) some particular physical phenomenon. Some formulations of the generalized solution may meet the modelling of a given phenomenon, the others may not.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 328 pp. Englisch.

Taschenbuch. Condición: Neu. Neuware -Immunofluorescence, a suitable laboratory method for themicroscopic demonstration of antigens and antibodies in biologicalmaterials, useable, for example, to provide evidence for thepathogenesis of disease in histological or cytological preparations andfor tumour cell differentiation. For this reason immunofluorescence hasa decisive role as the method of choice for the diagnosis of auto-immunediseases. This primer on immunofluorescence techniques, which firstappeared in 1979, is a richly illustrated handbook suitable for everydaypractical work in the laboratory, useable as both an introduction to thesubject as well as an atlas. In hardly any other area of medicine arethere so many new findings to report. The second edition of this book isconcerned not only with the detection methods which now form anessential and established part of diagnostic techniques, but also withthe most recent research results such as the discovery of antibodiesagainst Auerbach's plexus and against podocytes.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 252 pp. Englisch.

Taschenbuch. Condición: Neu. Neuware -The mathematical works of Fritz John whose deep and original ideas have had a great influence on the development of various fields in mathema tical analysis are made available with these volumes. His works are certainly well known to the experts, but knowledge of his contributions may not have spread as widely as it should have. For example, the concept of functions of bounded mean oscillations plays a central role in harmonic analysis today, but it is perhaps less known that this class of functions was introduced by John as early as 1961, motivated by his work in elasticity theory. With the publication of this collection, a wider circle of mathematicians will become familiar with, and appreciate, the fertile ideas of Fritz John. The organization of these two volumes was undertaken in consultation with the author. It was decided not to present the papers in chronological order, but rather to subdivide them into ten sections representing different mathematical topics to which John has contributed. Commentaries made by experts in the fields are appended to each section. Since the division into sec tions could, of course, not be made sharply, there are several overlaps. For instance, the comments of Louis Nirenberg refer to Elasticity Theory VI, Geometric Inequalities VIII, and Functions of Bounded Mean Oscillations IX. To help the reader, cross-references and remarks by the author will be found at the end of each section.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 652 pp. Englisch.

Taschenbuch. Condición: Neu. Neuware -and made insignificant in practice, by selecting for study simple kinds of ex periences which are devoid of emotional content and which can be tested for reliability. A simple somatosensory ''raw feel' fulfills these characteristics (see papers nos. 2,5). In any case, if we fail to find ways to use introspective reports in convincingly acceptable studies we would give up the ability to investigate the relation between conscious experience and neural activity, something warned against by William James (Krech, 1969). Another factor in the dearth of direct experimental studies is, of course, the comparative inaccessibility of the human brain for such purposes. Meaningful investigations of the issue in question requires simultaneous study of brain events and introspective reports of experiences in an awake, cooperative human subject. Analysis by neuropsychologists of pathological lesions in the brain and the related disturbances of conscious functions have contributed much to mapping the pos sible representations of these functions. The non-invasive recording of electrical activity with electrodes on the scalp, starting from Berger's initial EEG record ings in 1929, has contributed much to the problems of states of consciousness and to various cognitive features associated with sensory inputs, but not as much to the specific issue of conscious experience.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 436 pp. Englisch.

Taschenbuch. Condición: Neu. Neuware -Der Erhaltung vorhandener Bausubstanz und ihre Anpassung an neue Bedürfnisse kommt heute eine steigende Bedeutung zu. Das gilt auch für Tragkonstruktionen. Während Tragwerke in Stahl von vornherein anpassungfähiger sind, mussten entsprechende Möglichkeiten bei Betontragwerken erst geschaffen und entwickelt werden. Das nachträgliche Anbringen äußerer Bewehrung ist ein solches Verfahren. Mit diesem Verfahren ist es möglich, Mängel an bestehenden Konstruktionen zu beheben oder ihre Tragsicherheit und Gebrauchstauglichkeit neuen Einwirkungen - wie erhöhter Nutzlast oder veränderter Art der Beanspruchung - anzupassen.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 180 pp. Deutsch.

Taschenbuch. Condición: Neu. Neuware -Die Bauwerksvermessung bildet die Grundlage für jede gründliche Bestandserfassung eines Gebäudes, seiner konstruktiven Zusammenhänge, des Bauzustandes und zu planende Baumaßnahmen. Sie erfasst das Bauwerk in seiner komplexen Form in einer angemessenen Detaillierung und bei Bedarf auch verformungsgetreu. Sie ist ein wesentlicher Bestandteil der Bauaufnahme im Rahmen von Sanierung, Modernisierung bzw. Umnutzung eines Gebäudes, aber auch bei Bauuntersuchungen für wissenschaftliche Zwecke der Haus- und Bauforschung und bei denkmalpflegerischen Maßnahmen.Die Bauwerksvermessung vereint methodisch das Handaufmaß mit Geodäsie, Photogrammetrie und Laserscanning. Der Autor bietet einen umfassenden Überblick und Anwenderwissen zum Thema Bauwerksvermessung. Die grundlegenden Verfahren Handaufmaß, Geodäsie, Photogrammetrie und Laserscanning bilden neben dem Management von Messprodukten an Bauwerken den Schwerpunkt des Buches. Das Buch ist ebenso geeignet als Nachschlagewerk über die derzeit aktuellen Verfahren und Methoden.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 336 pp. Deutsch.

Taschenbuch. Condición: Neu. Neuware -Die nach Inhalt, Methode und sozialer Relevanz durchgreifenden Umwälzungen in Mathematik, Astronomie, Physik, Chemie, Biologie und Geographie sowie in Naturphilosophie und wissenschaftlichen Organisationsformen während des 16./17. und des beginnenden 18. Jahrhunderts werden in der Historiographie der Wissenschaften mit dem Sammelbegriff Wissenschaftliche Revolution schlechthin bezeichnet. Der Autor beschreibt in seinem Buch markante Höhepunkte jenes Prozesses, auf denen ganz wesentlich unsere heutige Wissenschaft gegründet ist. Um die geistigen Wendungen und die Persönlichkeiten hervortreten zu lassen, wurde großer Wert auf authentische Äußerungen jener Wissenschaftler gelegt.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 236 pp. Deutsch.

Taschenbuch. Condición: Neu. Neuware -Eigenschaften von Singularitäten . . . . . . . . . . . . . . . . . . 49 4. 1 Der Umgebungsrand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 4. 2 Gute Repräsentanten von Abbildungskeimen . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 4. 3 Monodromie . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 4. 4 Die Monodromie einer quadratischen Singularität (lokaler Fall) . . . . . . . . . . 65 5 Die U ntersuchung von Milnorfasern . . . . . . . . . . . . . . . . . ¿. . . ¿. . ¿¿. ¿ ¿. . . . . . . 73 5. 1 Milnorfasem von ebenen Kurvensingularitäten . . . . . . ¿. . ¿. . . ¿. . ¿. . . . . . . . . 73 5. 2 Milnorfasem von Hyperfiä. chensingularitäten . . . . . . . . . . . . . . ¿. . ¿. . . . . . . . . . 81 6 Die Beec r hnung d er M o n oro d mie . . . . . . . . . . . . . . . . . . . ¿. . . . . . ¿. . ¿ . . . . . . . . . 87 6. 1 Die Morsifikation . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ¿. . . . . . . 87 6. 2 Die Monodromie der ebenen Kurvensingularitäten in Cl. . . . . . . . . . 88 6. 3 Dynkin-Dia. gramm und Monodromiegruppe . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 6. 4 Die Monodromie beim Addieren von FUnktionskeimen . . . . . . . . . . . . .Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 152 pp. Deutsch.

Taschenbuch. Condición: Neu. Neuware -Das Buch aus der Reihe Technik der Turboflugtriebwerke stellt die Gestaltung bzw. Projektierung von Turbostrahltriebwerken und Wellenleistungstriebwerken umfassend und praxisnah dar.Die Reihe enthält wissenschaftlich fundierte Gesamtdarstellungen des vorhandenen Fachwissens zur Berechnung, Konstruktion und zum Bau von Turboflugtriebwerken. Sie verbindet die wissenschaftlichen Grundlagen aus Maschinenbau, Elektrotechnik, Physik, Werkstoffwissenschaften, Regelungstechnik und allgemeinen Ingenieurwissenschaften mit den anwendungsbezogenen Erfordernissen des jeweiligen Spezialgebietes im Flugturbinenbau.Die Autoren der Reihe sind erfahrene Experten aus den Forschungs- und Entwicklungsabteilungen der Industrie.Die Reihe richtet sich an den Ingenieur in der Entwicklung, Bau oder Wartung von Flugtriebwerken sowie an den Studenten der Flugzeugtechnik.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 860 pp. Deutsch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The human immune system, despite having its own sophisticated defence mecha nisms, is inferior to bacteria and viruses with respect to adaptability. Furthermore, our immune system is increasingly exposed to detrimental effects, that is immuno suppressive environmental consequences, unhealthy living, and chronic illnesses. Excessive chemotherapy threatens our immune system even further. This situation demands compensatory prophylactic therapeutic regimes. One of these - specific immunostimulation - is more difficult to achieve than the immunosuppression cur rently used in transplantation surgery and the medical treatment of autoimmune dis eases. The earliest attempts to develop suitable medication for immunostimulation were based on traditional remedies which embodied the accumulated experience of several centuries. Medicinal plants are already being used prophylactically as stan dardized and efficacy-optimized preparations for the treatment of various recur rent infections, or in combination with chemotherapeutics in standard medical practice. In order to rationally apply immunostimulants of plant origin, however, it is necessary to search for the active principles of these substances and to produce them in a pure form. Because suitable screening methods have become available only recently, research in this field is in its very beginning. Further progress can be expected from systematic basic research on the mechanisms underlying immunomodulation. This also applies to verification of clinical efficacy, which is a prerequisite for the acceptance of medications with purported immunostimulatory properties. 388 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This volume is dedicated to Harold Widom, a distinguished mathematician and renowned expert in the area of Toeplitz, Wiener-Hopf and pseudodifferential operators, on the occasion of his sixtieth birthday. The book opens with biographical material and a list of the mathematician's publications, this being followed by two papers based on Toeplitz lectures which he delivered at Tel Aviv University in March, 1993. The rest of the book consists of a selection of papers containing some recent achievements in the following areas: Szegö-Widom asymptotic formulas for determinants of finite sections of Toeplitz matrices and their generalizations, the Fisher-Hartwig conjecture, random matrices, analysis of kernels of Toeplitz matrices, projectional methods and eigenvalue distribution for Toeplitz matrices, the Fredholm theory for convolution type operators, the Nehari interpolation problem with generalizations and applications, and Toeplitz-Hausdorff type theorems. The book will appeal to a wide audience of pure and applied mathematicians. 188 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Our goal is to find Grabner bases for polynomials in four different sets of expressions: 1 x- , (1 - x)-1 (RESOL) X, 1 x- (1 - xy)-1 (EB) X, , y-1, (1-yx)-1 y, (1_y)-1 (1-x)-1 (preNF) (EB) plus and (1 - xy)1/2 (1 - yx )1/2 (NF) (preNF) plus and Most formulas in the theory of the Nagy-Foias operator model [NF] are polynomials in these expressions where x = T and y = T\*. Complicated polynomials can often be simplified by applying 'replacement rules'. For example, the polynomial (1 - xy)-2 - 2xy(1-xy)-2 + xy2 (1 - xy)-2 -1 simplifies to O. This can be seen by three applications of the replacement rule (1-xy) -1 xy -t (1 - xy)-1 -1 which is true because of the definition of (1-xy)-1. A replacement rule consists of a left hand side (LHS) and a right hand side (RHS). The LHS will always be a monomial. The RHS will be a polynomial whose terms are 'simpler' (in a sense to be made precise) than the LHS. An expression is reduced by repeatedly replacing any occurrence of a LHS by the corresponding RHS. The monomials will be well-ordered, so the reduction procedure will terminate after finitely many steps. Our aim is to provide a list of substitution rules for the classes of expressions above. These rules, when implemented on a computer, provide an efficient automatic simplification process. We discuss and define the ordering on monomials later. 422 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This engaging volume offers a selection of the best contributions by Russian historians and philosophers of science to the Einstein Studies industry. 336 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The theory of finite automata on finite stings, infinite strings, and trees has had a dis tinguished history. First, automata were introduced to represent idealized switching circuits augmented by unit delays. This was the period of Shannon, McCullouch and Pitts, and Howard Aiken, ending about 1950. Then in the 1950s there was the work of Kleene on representable events, of Myhill and Nerode on finite coset congruence relations on strings, of Rabin and Scott on power set automata. In the 1960s, there was the work of Btichi on automata on infinite strings and the second order theory of one successor, then Rabin's 1968 result on automata on infinite trees and the second order theory of two successors. The latter was a mystery until the introduction of forgetful determinacy games by Gurevich and Harrington in 1982. Each of these developments has successful and prospective applications in computer science. They should all be part of every computer scientist's toolbox. Suppose that we take a computer scientist's point of view. One can think of finite automata as the mathematical representation of programs that run us ing fixed finite resources. Then Btichi's SIS can be thought of as a theory of programs which run forever (like operating systems or banking systems) and are deterministic. Finally, Rabin's S2S is a theory of programs which run forever and are nondeterministic. Indeed many questions of verification can be decided in the decidable theories of these automata. 452 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book is about the theory of system representations. The systems that are considered are linear, time-invariant, deterministic and finite dimensional. The observation that some representations are more suitable for handling a particular problem than others motivates the study of rep resentations. In modeling a system, a representation often arises naturally from certain laws that underlie the system. In its most general form the representation then consists of dynamical equations for the system compo nents and of constraint equations reflecting the connection between these components. Depending on the particular problem that is to be inves tigated, it will sometimes be useful to rewrite the equations, that is, to transform the representation. For this reason it is of special importance to derive transformations that enable one to switch from one representation to another. A new approach of the past decade has been the so-called 'behavioral ap proach' introduced by Willems. One of the main features of the behavioral approach is that it is well suited for modeling the interconnection of sys tems. It is for this reason that the behavioral approach is a natural choice in the context of modeling. In this book we adopt the behavioral approach: we define a system as a 'behavior' , that is, a set of trajectories whose math ematical representation by means of differential or difference equations is nonunique. An aspect of this approach that is important in the context of representation theory is the fact that a natural type of equivalence arises. 212 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -to Deep Earth Electrical Conductivity.- Electromagnetic induction in the earth due to stationary and moving sources.- The new approach to global deep sounding.- The effect of the oceans and sedimentary cover on global magnetovariational field distribution.- The magnetospheric disturbance ring current as a source for probing the deep earth electrical conductivity.- The conductosphere depth at equatorial latitudes as determined from geomagnetic daily variations.- A deep geophysical study in the Baikal region.- A new telluric KCl probe using Filloux¿s AgAgCl electrode. 88 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -xiv aggregates: this touches on the very nature of things. The concept of statistical symmetry which Loeb develops is particularly important, it emphasizes the limitations in seemingly random aggregates and for permits general statements of which the crystallographer's sym metries are only special cases. The reductionist and holistic approaches to the world have been at war with each other since the times of the Greek philosophers and before. In nature, parts clearly do fit together into real structures, and the parts are affected by their environment. The problem is one of understanding. The mystery that remains lies largely in the nature of structural hierarchy, for the human mind can examine nature on many different scales sequentially but not simultaneously. Arthur Loeb's monograph is a fundamental one, but one can sense a devel opment from the relations between his zero-and three-dimensional cells to the far more complex world of organisms and concepts. It is structure that makes the difference between a cornfield and a cake, between an aggregate of cells and a human being, between a random group of human beings and a society. We can perceive anything only when we perceive its structure, and we think by structural analogy and comparison. Several books have been published showing the beauty of form in nature. This one has the beauty of a work of art, but it grows out of rigorous mathematics and from the simplest of bases-dimensional ity, extent and valency. 212 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Since prostaglandins were first proposed as mediators of in flammation some eight years ago, there have been a variety of arachidonic acid metabolites discovered including the thromboxa nes, prostacyclin, prostaglandin endoperoxides and lipoxygenase products such as SRS-A. All of them have subsequently been shown to have significant and specific biological activities not only in inflammatory responses but also in other physiological pro cesses. The explosion of research in this area has been an indi cation of the importance of this field but has also meant that it is time for an evaluation of activities of prostaglandins and products of the arachidonate pathway - collectively described as eicosanoids. For this reason the organizers of this conference felt it was timely to bring together workers in the field and critically evaluate some aspects of the role of different eico sanoids in inflammatory responses and the action of the anti inflammatory agents drugs used to modulate or inhibit these responses. The conference held at King's College Hospital Medical School produced lively and constructive discussions. While there are still many complexities to be investigated several important conclusions did emerge. The organizers were grateful to have the use of facilities at Normanby College and King's College Hospi tal. Also we would like to thank the Boots Company Ltd. , for generous sponsorship and Mrs. P. Carter for valuable secretarial assistance. K. D. Rainsford A. W. Ford-Hutchinson M. J. H. Smith Organizers. Lewis 7 INTRODUCTION TO PROSTAGLANDINS AND INFLAMMATION G. P. 248 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The book will provide an overview of the roles of vascular adhesion molecules in health and disease, with chapters on their cell biology, followed by chapters reviewing their importance in specific disease processes. Vascular adhesion molecules are vital for the physiological processes of leukocyte trafficking and also critically involved in the enhanced leukocyte emigration that is a key feature of all inflammatory and immune diseases. The book is designed to provide up-to-date, linked reviews of the subject suitable for postgraduate students entering the field or research workers from allied disciplines needing a modern overview. 276 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This volume provides a relatively accessible introduction to its subject that captures the essential ideas of transfiniteness for graphs and networks. 200 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Literally thousands of papers have been published on nitric oxide overthe past ten years. But there is no single monograph available that haspreviously attempted to summarize the important features of the roles ofnitric oxide in inflammation. The voluminous literature regarding theincredible range of chemical and biological effects of nitric oxide andreactive nitrogen oxide species, RNOS, may present a tangle of confusinginformation to the researcher. This volume brings together experts fromnitric oxide and inflammation research and presents a concise up-to-dateoverview as well as future aspects of this rapidly growing field. 296 pp. Englisch.