The short-time Fourier transform of distributions of exponential type and Tauberian theorems for shift-asymptotics

Sanja Kostadinova, Stevan Pilipovic, Katerina Saneva, Jasson Vindas

Published 2013-12-03, updated 2016-12-12Version 2

We study the short-time Fourier transform on the space $\mathcal{K}_{1}'(\mathbb{R}^n)$ of distributions of exponential type. We give characterizations of $\mathcal{K}_{1}'(\mathbb{R}^n)$ and some of its subspaces in terms of modulation spaces. We also obtain various Tauberian theorems for the short-time Fourier transform.