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Paperback. Condición: As New. No Jacket. Pages are clean and are not marred by notes or folds of any kind. ~ ThriftBooks: Read More, Spend Less.

Hardcover. Condición: Good. No Dust Jacket. Translated from the Russian by Paul C. Fife. 259 pages. Ex-library marks, moderate wear and yellowing; a sound binding; good overall. Quantity Available: 1. Category: Mathematics; ISBN: 0306307510. ISBN/EAN: 9780306307515. Inventory No: 230396.

Condición: Good. Former library copy. Pages intact with minimal writing/highlighting. The binding may be loose and creased. Dust jackets/supplements are not included. Includes library markings. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good.

25.5 × 17 cm, hardcover with dust jacket, viii, 260 pages, text in English, very good condition, see picture. Translated from the Russian edition "Uravneniya vtorogo poryadka s neotritsatel'noi kharakteristicheskoi formoi" (Moscow, 1971) by Paul C. Fife. Published under the AMSPlenum agreement. Standard reference on elliptic and boundary value problems with nonnegative characteristic form. 640g. …

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Hardcover-Großformat. Condición: Gut. 259 Seiten; Das Buch befindet sich in einem ordentlich erhaltenen Zustand. Leichte altersbedingte Anbräunung des Papiers. In ENGLISCHER Sprache. Sprache: Englisch Gewicht in Gramm: 620.

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Condición: gut. XIII, 399 S., 23 cm, Bibliotheksexemplar. Sprache: Englisch.

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Paperback. Condición: Brand New. reprint edition. 259 pages. 9.50x6.75x0.50 inches. In Stock.

Hardcover. Condición: Good. First of this edition. Uspekhi Matematicheski Nauk Tom XVII 3(105), this article featured at 145 pages. Original RUSSIAN editon. FLexible boards, rubbed and chipped at spine and corners. Bumped at corner of head. The article is a review of the theory of linear partial differential equations of the parabolic type, where the classical facts of this theory are described in detail. Bibliography: 128 titles.…

Paperback. Condición: Brand New. 347 pages. 10.10x7.10x0.80 inches. In Stock.

Taschenbuch. Condición: Neu. Druck auf Anfrage Neuware - Printed after ordering - 1.1. Nearly Integrable Hamiltonian Systems. In this work we examine the system of Hamiltonian equations i = _ iJH , ~ = iJH iJcp iJl with the Hamiltonian function H = Ho(l) + eH. (I. cp). (1.1) where E: '1 is a small parameter, the perturbation E:Hl (I ,cp) is 2n periodic in CP=CP1,''CPS' and I is an s-dimensional vector, I = Il, I s The CPi are called angular variables, and the Ii action variables. A system with a Hamiltonian depending only on the action variables is said to be integrable, and a system with Hamiltonian (1.1) is said to be nearly integrable. The system (1.1) is also called a perturbation of the system with Hamiltonian Ho. The latter system is called un perturbed. 1.2. An Exponential Estimate of the Time of Stability for the Action Variables. Let I(t), cp(t) be an arbitrary solution of the per turbed system. We estimate the time interval during which the value I(t) differs slightly from the initial value: II(t)-I(O) I '1. The main result of the work is Theorem 4.4 (the main theorem) which is proved in [1]. This theorem asserts that the above-mentioned interval is estimated by a quantity which grows exponentially as the value of perturbation decreases linearly: 1/(t)-/(O)I 0 and b 0 are given l.n Sec. 4 [IJ.…

Taschenbuch. Condición: Neu. Druck auf Anfrage Neuware - Printed after ordering - Second order equations with nonnegative characteristic form constitute a new branch of the theory of partial differential equations, having arisen within the last 20 years, and having undergone a particularly intensive development in recent years. An equation of the form (1) is termed an equation of second order with nonnegative characteristic form on a set G, kj if at each point x belonging to G we have a (xHk~j ~ 0 for any vector ~ = (~l' . '~m)' In equation (1) it is assumed that repeated indices are summed from 1 to m, and x = (x l' --- , x ). Such equations are sometimes also called degenerating m elliptic equations or elliptic-parabolic equations. This class of equations includes those of elliptic and parabolic types, first order equations, ultraparabolic equations, the equations of Brownian motion, and others. The foundation of a general theory of second order equations with nonnegative characteristic form has now been established, and the purpose of this book is to pre sent this foundation. Special classes of equations of the form (1), not coinciding with the well-studied equations of elliptic or parabolic type, were investigated long ago, particularly in the paper of Picone [105], published some 60 years ago.…

Paperback. Condición: Brand New. 412 pages. 9.00x6.00x0.93 inches. In Stock.

Hardcover/Pappeinband. Condición: Gut. vi, 259 Seiten. Ehemaliges Bibliotheksexemplar, gestempelt und mit Rückensignatur. Einband bestoßen. Insgesamt gut erhalten. Sprache: Englisch Gewicht in Gramm: 1200.

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