THE PROBABILITY IN THE ENTIRE SYSTEM OF SERIES OUEUES AND THE MEASURES OF EFFECTIVENESS
THE CESARO SPACE OF NULL SEQUENCES
A GENERALIZATION OF THE GAUSS-BONNET THEOREM
A GENERALIZATION FOR LAGUERRE FUNCTION OF A HYPERSURFACE IN A RIEMANNIAN MANIFOLD
ON THE STROGLY REGULAR DUAL SUMMABILITY METHODS OF THE SECOND KIND