B. S. Kašin

DIAMETERS OF SOME FINITE-DIMENSIONAL SETS AND CLASSES OF SMOOTH FUNCTIONS

B. S. Kašin, Udc, 1977 .

On the mean value of certain functions connected with the convergence of orthogonal series

B. S. Kašin, 1978 .

ON A COMPLETE ORTHONORMAL SYSTEM

B. S. Kašin, 1976 .

REMARKS ON ESTIMATING THE LEBESGUE FUNCTIONS OF AN ORTHONORMAL SYSTEM

B. S. Kašin, 1979 .