Some Mathematical Methods of Physics
Courier Corporation, 2014 M06 18 - 320 páginas
This well-rounded, thorough treatment for advanced undergraduates and graduate students introduces basic concepts of mathematical physics involved in the study of linear systems. The text emphasizes eigenvalues, eigenfunctions, and Green's functions. Prerequisites include differential equations and a first course in theoretical physics.
The three-part presentation begins with an exploration of systems with a finite number of degrees of freedom (described by matrices). In part two, the concepts developed for discrete systems in previous chapters are extended to continuous systems. New concepts useful in the treatment of continuous systems are also introduced. The final part examines approximation methods — including perturbation theory, variational methods, and numerical methods — relevant to addressing most of the problems of nature that confront applied physicists. Two Appendixes include background and supplementary material. 1960 edition.
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applied approximate arbitrary base vectors basis Bessel function boundary conditions Chap chapter coefﬁcients column commute complete consider constant continuous systems contour corresponding cylindrical functions deﬁned deﬁnition denoted determinant diagonal diagonalizable differential equation Dirac notation domain eigen eigencolumns eigenfunctions eigenvalue equation eigenvector elements evaluate expansion ﬁnd ﬁnite number ﬁrst follows formula Fourier given Green’s function Hence Hermitian matrix Hermitian operator inﬁnite integral Introduction inverse Laplacian linear operator linearly independent lowest eigenvalue matrix McGraw-Hill Book Company membrane method multiplication nonsingular normal normal matrix Note number of degrees obtained orthonormality conditions perturbation plane procedure QUANTUM MECHANICS relations representation result Ritz method satisﬁes satisfy scattering solve speciﬁed spherical spherical harmonics string Substitution theorem theory tion trial functions vanish variable vector space veriﬁed wave write written yields York zero