Izvestiya of Saratov University.

Mathematics. Mechanics. Informatics

ISSN 1816-9791 (Print)

ISSN 2541-9005 (Online)

spectral problem

Upper and low bounds of azimuthal numbers related to elementary wave functions of an elliptic cylinder

About the Classical Solution of the Mixed Problem for the Wave Equation

Justification of Fourier Method in a Mixed Problem for Wave Equation with Non-zero Velocity

A Mixed Problem for a Wave Equation with a Nonzero Initial Velocity