摘要
讨论了本性有界函数的本性值域以及Toeplitz算子的可逆性与本性可逆性,给出了符号在L∞中的Toeplitz算子为Fredholm算子的充要条件.
In the present paper, we discuss the essential ranges of essential bounded functions,and the invertibilityand essential invertibility of Toeplitz operators. In addition,the iff condition for the Fredholm Toeplitz operator with symbol in L^∞ is obtained.
出处
《广州大学学报(自然科学版)》
CAS
2005年第4期302-304,315,共4页
Journal of Guangzhou University:Natural Science Edition