Myint-U T. Partial Differential Equations of Mathematical Physics

Elsevier Publishing Company, 1973. — 383 p. — ISBN: 0-444-00132-8.Mathematical Models.
Classification of Second-order Equations.
The Cauchy Problem.
Fourier Series.
Method of Separation of Variables.
Eigenvalue problems.
Boundary Value Problems.
Higher Dimensional Problems.
Green's Function.
Integral Transforms.
Appendix.