Boundary value problems for matrix Euler-Poisson-Darboux equation with data on a characteristic

af Aleksander A Andreev, Ekaterina A Maksimova
Udgivet 2015-12-01

The Goursat problem for one hyperbolic system of the third order differential equations with two independent variables

af Aleksander A Andreev, Julia O Yakovleva
Udgivet 2011-09-01