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- W2953294893 abstract "We investigate a new representation of general operators by means of sums of shifted Gabor multipliers. These representations arise by studying the matrix of an operator with respect to a Gabor frame. Each shifted Gabor multiplier corresponds to a side-diagonal of this matrix. This representation is especially useful for operators whose associated matrix possesses some off-diagonal decay. In this case one can completely characterize the symbol class of the operator by the size of the symbols of the Gabor multipliers. As an application we derive approximation theorems for pseudodifferential operators in the Sjostrand class." @default.
- W2953294893 created "2019-06-27" @default.
- W2953294893 creator A5030647011 @default.
- W2953294893 date "2009-08-14" @default.
- W2953294893 modified "2023-09-27" @default.
- W2953294893 title "Representation and Approximation of Pseudodifferential Operators by Sums of Gabor Multipliers" @default.
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