论文标题
用于矩阵和伪差算子的准银行代数的光谱不变性
Spectral Invariance of Quasi-Banach Algebras for Matrices and Pseudodifferential Operators
论文作者
论文摘要
在论文中，我们扩展了作用于（非加权）经典调制空间的假差异操作员的光谱不变性，以使Lebesgue指数小于一个。这些空间自然出现在近似理论和数据压缩问题中。
In the paper we extend the spectral invariance of pseudodifferential operators acting on (non-weighted) classical modulation spaces to allow the Lebesgue exponents to be smaller than one. These spaces occur naturally in approximation theory and data compression problems.
