Orthogonal polynomials of several variables

• 作者： Dunkl, Charles F., 1941- author.
• 其他作者：
  • Xu, Yuan, 1957- author.
• 其他題名：
  • Encyclopedia of mathematics and its applications ;
• 出版： Cambridge : Cambridge University Press
• 版本：Second edition.
• 叢書名： Encyclopedia of mathematics and its applications ;155
• 主題： Orthogonal polynomials. , Functions of several real variables.
• ISBN： 9781107786134 (electronic bk.) 、 9781107071896 (paper)
• FIND@SFXID: CGU
• 資料類型: 電子書
• 內容註: 1. Background -- The gamma and beta functions -- Hypergeometric series -- Orthogonal polynomials of one variable -- Classical orthogonal polynomials -- Modified classical polynomials -- Notes -- 2. Orthogonal polynomials in two variables -- Introduction -- Product orthogonal polynomials -- Orthogonal polynomials on the unit disk -- Orthogonal polynomials on the triangle -- Orthogonal polynomials and differential equations -- Generating orthogonal polynomials of two variables -- First family of koornwinder polynomials -- A related family of orthogonal polynomials -- Second family of koornwinder polynomials -- 3. General properties of orthogonal polynomials in several variables -- Notation and preliminaries -- Moment funtionals and orthogonal polynomials -- The three-term relation -- Jacobi matrices and commuting operators -- Further properties of the three-term relation -- Reproducing kernels and fourier orthogonal series -- Common zeros of orthogonal polynomials in several variables -- Gaussian cubature formulae -- Notes -- 4. Orthogonal polynomials on the unit sphere -- Spherical harmonics -- Orthoginal structures on Sd and on Bd -- Orthogonal structures on Bd and on Sd+m-1 -- Orthogonal structure on the simplex -- Van der corput -- Schaake inequality -- 5. Examples of orthogonal polynomials in several variables -- Orthogonal polynomials for simple weight functions -- Classical orthogonal polynomials on the unit ball -- Classical orthogonal polynomials on the simplex -- Orthogonal polynomials via symmetric functions -- Chebyshev polynomials to Type Ad -- Sobolev orthogonal polynomials on the unit ball -- 6. Root systems and coxeter groups -- Introduction and overview -- Root systems -- Invariant polynomials -- Differential-difference operators -- The intertwining operator -- The K-analogue of the exponential -- Invariant differential operators -- 7. Spherical harmonics associated with reflection groups -- h-Harmonic polynomials -- Inner products on polynomials -
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• 摘要註: Serving both as an introduction to the subject and as a reference, this book presents the theory in elegant form and with modern concepts and notation. It covers the general theory and emphasizes the classical types of orthogonal polynomials whose weight functions are supported on standard domains. The approach is a blend of classical analysis and symmetry group theoretic methods. Finite reflection groups are used to motivate and classify symmetries of weight functions and the associated polynomials. This revised edition has been updated throughout to reflect recent developments in the field. It contains 25% new material, including two brand new chapters on orthogonal polynomials in two variables, which will be especially useful for applications, and orthogonal polynomials on the unit sphere. The most modern and complete treatment of the subject available, it will be useful to a wide audience of mathematicians and applied scientists, including physicists, chemists and engineers.
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