47657

by S. B. Steckin , P. I. VlʹJanov

[Translated from the Russian by G. Piranian}

American Mathematical Society

1967

v, 85p

Proceedings of the steklov, institute of mathematics, No. 86

Bibliography: p. 85

Ulianov, P. L , ^dSeries: Proceedings of the steklov, institute of mathematics, No. 86

515

.243

S811s

fazel^d//