In this paper we discuss the hyponormality and normality of toeplitz operators on the Bergman space,we conclude if f,g∈H~∞ and T_f(T_g)~*=(T_g)~*T_f,then either f or g must be a constant.
讨论 Bergman 空间上 Toeplitz 算子的正规性及亚正规性问题。
In order to investigate the rationality of a fuzzy choice function,Banerjee proposed some rationality conditions,such as normality,condition A and B and weak fuzzy order.
为研究模糊选择函数的理性化问题,Banerjee提出了四个合理性条件:正规性,条件A,条件B及弱模糊序,讨论了四个条件之间的独立性问题。