S. Pilipović, B. Prangoski, “On the Characterizations of Wave Front Sets in Terms of the Short-Time Fourier Transform”, Матем. заметки, 2019, том 105, выпуск 1,страницы 153

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On the Characterizations of Wave Front Sets in Terms of the Short-Time Fourier Transform

S. Pilipović^a, B. Prangoski^b

^a Department of Mathematics and Informatics, University of Novi Sad, Novi Sad, 21000 Serbia
^b Department of Mathematics, Faculty of Mechanical Engineering-Skopje, Skopje, 1000 Macedonia

Аннотация: It is well known that the classical and Sobolev wave fronts were extended to nonequivalent global versions by the use of the short-time Fourier transform. In this very short paper, we give complete characterizations of the former wave front sets in terms of the short-time Fourier transform.

Ключевые слова: wave front set, short-time Fourier transform.

Поступило: 03.03.2017

Язык публикации: английский