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math.FA2008★ 4 cited
Trace operators of modulation, alpha modulation and Besov spaces
Hans Feichtinger, Chunyan Huang, Baoxiang Wang
In this paper, we consider the trace theorem for modulation spaces, alpha modulation spaces and Besov spaces. For the modulation space, we obtain the sharp results.
math.FA2005
Minimal Norm Interpolation in Harmonic Hilbert Spaces and Wiener Amalgam Spaces on Locally Compact Abelian Groups
Hans G. Feichtinger, Sheel S. Pandey, Tobias Werther
The family of harmonic Hilbert spaces is a natural enlargement of those classical -Sobolev space on which consist of continuous functions. In the present paper we dem…
math.FA2002
Compactness Criteria in Function Spaces
Monika Dörfler, Hans G. Feichtinger, Karlheinz Gröchenig
The classical criterion for compactness in Banach spaces of functions can be reformulated into a simple tightness condition in the time-frequency domain. This description preserves…