Szász-type operators can be constructed by a Poisson process. The purpose of this paper is to derive the converse result in connection with Szász-type operators by Steckin-Marchaud-type inequalities and new ...Szász-type operators can be constructed by a Poisson process. The purpose of this paper is to derive the converse result in connection with Szász-type operators by Steckin-Marchaud-type inequalities and new Ditzian modulus of continuity. The degree of approximation on deterministic signals is also given.展开更多
基金Supported by the Foundation of Key Item of Science and Technology of Education Ministry of China(03142)Foundation of Higher School of Ningxia(JY2002107)
基金Supported by National Natural Science Foundation of China (No.60872161)Natural Science Foundation of Tianjin (No. 08JCYBJC09600)
文摘Szász-type operators can be constructed by a Poisson process. The purpose of this paper is to derive the converse result in connection with Szász-type operators by Steckin-Marchaud-type inequalities and new Ditzian modulus of continuity. The degree of approximation on deterministic signals is also given.