Уѧ桿Fourier multipliers on twisted crossed products

Quanhua Xu ȫ  (Universit de Franche-Comt & Harbin Institute of Technology)

13:30-14:30, April 19, 2024   Science Building A503




Abstract:

Given a twisted W*-dynamic system $(\M, \a, \s, G)$, let $\M\rtimes_{\a, \s}G$ be the associated twisted crossed product. In this talk, we first consider permanent properties under twisted crossed product like injectivity and w*-amenability. The second part of the talk is devoted to the study of Fourier multipliers on $\M\rtimes_{\a, \s}G$. We give criteria of completely bounded $L_p$ Fourier multipliers and establish a link between Fourier and Schur multipliers. This talk is based on a joint work with Xiao Xiong and Kai Zeng.

About the speaker:

ȫڣʲ-̩ѧؼڣ2014ѡΪѧоԺԺʿιҵѧѧоԺԺҪӸʡӿռ估ͷȷоJ. Amer. Math. Soc., Invent. Math., Duke Math. J.ȿϷ80ƪһЩǿԵĵشͻԵĹʹϵķǽ۵ĵ֮һȫ1997Gilles Pisierڷǽۺͷǽ۷ȡͻԵijɹ2007 Marius Junge ֤˷ǽʽӸʷһ30Ĺ⡣⣬ֵַLittlewood-Paley-Steinۡ

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