Besides, the author gives the necessary and sufficient conditions for the two generating subspaces to be orthogonalcomplement spaces in a unitary space and certain corollaries.
在此基础上，得到了酉空间中两个生成子空间互为正交补空间的充要条件及其若干推论。
2
This paper deals with the dual Toeplitz operators on the orthogonalcomplement of the Fock space.