Plancherel measures for coverings of \(p\)-adic \(\mathrm{SL}_2(F)\) (Q2828368)

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scientific article; zbMATH DE number 6643149
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Plancherel measures for coverings of \(p\)-adic \(\mathrm{SL}_2(F)\)
scientific article; zbMATH DE number 6643149

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    25 October 2016
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    metaplectic groups
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    Plancherel measure
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    metaplectic local coefficients
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    Plancherel measures for coverings of \(p\)-adic \(\mathrm{SL}_2(F)\) (English)
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    From the abstract: ``In these notes, we compute the Plancherel measures associated with genuine principal series representations of \(n\)-fold covers of \(p\)-adic \(\mathrm{SL}(2)\). Along the way, we also compute a higher dimensional metaplectic analog of Shahidi local coefficients. Our method involves new functional equations utilizing the Tate \(\gamma\)-factor and a metaplectic counterpart. As an application, we prove an irreducibility theorem.''NEWLINENEWLINEThe paper consists mainly of lengthy computations. Sections 1--3 recall definitions, section 4 computes the intertwining operator, section 5 computes the Plancherel measure and discusses reducibility of parabolically induced representations. An appendix reproduces unpublished computations of Sweet.
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