【摘要】 关于线性正算子收敛性方面的Ｋｏｒｏｖｋｉｎ定理是函数逼近论的著名定理．推广了一般连续函数和周期连续函数一致收敛的Ｋｏｒｏｖｋｉｎ定理．得到了更便于验证的判别条件．更多还原

【Abstract】 The Korovkin theorems on convergence of positive linear operators are well-known ones of approximation theory of functions. Generalizes them about uniform convergence of general and periodic continuous functions and gets more convenient differentiating conditions.更多还原