S. S. Litvinkov, Yu. I. Fetisov, “Conditions for the convergence of Fourier series in generalized spherical functions”, Izv. Vyssh. Uchebn. Zaved. Mat., 1974, no. 9, 56–64
1972
2.
P. P. Zabreiko, Yu. I. Fetisov, “The method of a small parameter for hyperbolic equations”, Differ. Uravn., 8:5 (1972), 823–834
Contact us: