Eigenfunction expansions

Eigenfunction expansions associated with second-order differential equations.

E. C. Titchmarsh

Bases of special functions and their domains of convergence

Josef Saurer.

Green's Functions and Infinite Products: Bridging the Divide

by Yuri A. Melnikov

Rand-Eigenwertprobleme N (y)=[Greek letter lambda] P (y) bei [Greek letter lambda]-abhängigen Randbedigungen

G. Heisecke. Über parameterabhängige Integralformeln der Sturm-Liouvilleschen Theorie / W. Freeden

Remarks on a theorem of Å. Pleijel and related topics

Agnes Benedek, Rafael Panzone.

Regular boundary value problems associated with pairs of ordinary differential expressions

Earl A. Coddington, Hendrik S.V. de Snoo.

Abgeleitete Birkhoff-Reihen bei Randeigenwertproblemen zu N(y) = [lambda] P(y) mit [lambda]-abhängigen Randbedingungen

Franz-Josef Kaufmann.

Eigenfunction expansion of generalized functions

by J. N. Pandey and R. S. Pathak.

Locally convex algebras in spectral theory and eigenfunction expansions

H. G. J. Pijls.

On certain non harmonic Fourier expansions as eigenfunction expansions of non regular Sturm-Liouville systems

by A. Benedek, E. Güichal, and R. Panzone.