Discrete systems and integrability / [electronic resource]

• 作者： Hietarinta, J. (Jarmo), author.
• 其他作者：
  • Joshi, Nalini, author.
  • Nijhoff, Frank W., author.
• 其他題名：
  • Cambridge texts in applied mathematics.
• 出版： Cambridge : Cambridge University Press
• 叢書名： Cambridge texts in applied mathematics
• 主題： Integral equations. , Mathematical physics.
• ISBN： 9781107337411 (electronic bk.) 、 9781107042728 (hardback) 、 9781107669482 (paperback)
• FIND@SFXID: CGU
• 資料類型: 電子書
• 內容註: Introduction to difference equations -- Discrete equations from transformations of continuous equations -- Integrability of PEs -- Interlude: lattice equations and numerical algorithms -- Continuum limits of lattice PE -- One-dimensional lattices and maps -- Identifying integrable difference equations -- Hirota's bilinear method -- Multi-soliton solutions and the Cauchy matrix scheme -- Similarity reductions of integrable PE's -- Discrete Painleve equations -- Lagrangian multiform theory. Title from publisher's bibliographic system (viewed on 06 Sep 2016).
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• 摘要註: This first introductory text to discrete integrable systems introduces key notions of integrability from the vantage point of discrete systems, also making connections with the continuous theory where relevant. While treating the material at an elementary level, the book also highlights many recent developments. Topics include: Darboux and Bäcklund transformations; difference equations and special functions; multidimensional consistency of integrable lattice equations; associated linear problems (Lax pairs); connections with Padé approximants and convergence algorithms; singularities and geometry; Hirota's bilinear formalism for lattices; intriguing properties of discrete Painlevé equations; and the novel theory of Lagrangian multiforms. The book builds the material in an organic way, emphasizing interconnections between the various approaches, while the exposition is mostly done through explicit computations on key examples. Written by respected experts in the field, the numerous exercises and the thorough list of references will benefit upper-level undergraduate, and beginning graduate students as well as researchers from other disciplines.
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