Eigenfunction expansions :
Titchmarsh, E. C. 1899-
Eigenfunction expansions : associated with second-order differential equations. Part I / by E. C. Titchmarsh. - 2nd ed. - Oxford : Clarendon Press, 1962. - 203 p. 24 cm
Includes references
Εξισώσεις, Διαφορικές
Eigenfunction expansions : associated with second-order differential equations. Part I / by E. C. Titchmarsh. - 2nd ed. - Oxford : Clarendon Press, 1962. - 203 p. 24 cm
Includes references
Εξισώσεις, Διαφορικές