Search for dissertations about: "Yuanyuan Chen"

Found 1 swedish dissertation containing the words Yuanyuan Chen.

2. 1. Continuity and compositions of operators with kernels in ultra-test function and ultra-distribution spaces

   Author : Yuanyuan Chen; Joachim Toft; Nenad Teofanov; Linnéuniversitetet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Composition; modulation spaces; positivity; pseudo-differential operators; Schatten-von Neumann operators; twisted convolutions; ultra-distributions; Matematik; Mathematics;

   Abstract : In this thesis we consider continuity and positivity properties of pseudo-differential operators in Gelfand-Shilov and Pilipović spaces, and their distribution spaces. We also investigate composition property of pseudo-differential operators with symbols in quasi-Banach modulation spaces. READ MORE