sheffer相关论文
An operator on formal power series of the form S μS , where μ is an invertible power series, and σ is a series of the......
研究了Bernstein-sheffer算子在CΩ空间上的逼近性质,建立了逼近等价定理:1)当h〉0时,B^Hn是[0,1]到自身的正线性算子,则f∈D2={f│‖B^Hn(f)-f‖Ω=O(n-a/2),f∈CΩ,等价K(f,t)=O(t^a/2,│0〈a〈2);2)对0〈a〈2,f∈CΩ,对下命题等......
根据部分多值逻辑的完备性理论,证明了m=2时的一类正则可离函数集在P^*K中极大封闭集之最小覆盖中必需出现。......