1962-1963/22/2

Zur Fredholmschen Theorie in lokalkonvexen Räumen

Об исследовании собственных функций непрерывного спектра оператора ${\displaystyle -\Delta u+q(x_1,x_2,x_3)u}$ в случае наличия особенности у ${\displaystyle q(x_1,x_2,x_3)}$

Some analogies between the class of infinitely divisible distributions and the class ℒ of distributions

Intrinsic description of the Sz.-Nagy-Brehmer unitary dilation

On the Picard property of lacunary power series

On positive Banach halfalgebras without identity