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Speaker: Roberto Conti, U. Sapienza, Roma
Title: Fourier series and twisted crossed products
Abstract: For a discrete group \(G\), we discuss norm-convergence properties and resummation techniques for the Fourier series of elements in the twisted reduced \(C^*\)-algebra of \(G\). We then illustrate "versions with coefficients" of the above results, i.e. for Fourier expansion in a twisted reduced crossed product. As an application, we get some useful information on the (maximal) ideal structure of certain twisted crossed products. (Joint work with E. Bedos)
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