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math.FA2017
Compactness of Fourier Integral Operators on weighted modulation spaces
Carmen Fernández, Antonio Galbis, Eva Primo
Using the matrix representation of Fourier integral operators with respect to a Gabor frame, we study their compactness on weighted modulation spaces. As a consequence, we recover…
math.FA2017
Dynamics and spectra of composition operators on the Schwartz space
Carmen Fernández, Antonio Galbis, Enrique Jordá
In this paper we study the dynamics of the composition operators defined in the Schwartz space of rapidly decreasing functions. We prove that such an oper…