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Heisenberg parabolically induced representations of Hermitian Lie groups, Part II: Next-to-minimal representations and branching rules

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Every simple Hermitian Lie group has a unique family of spherical representations induced from a maximal parabolic subgroup whose unipotent radical is a Heisenberg group. For most Hermitian groups, this family contains a complementary series, and at its endpoint sits a proper unitarizable subrepresentation. We show that this subrepresentation is next-to-minimal in the sense that its associated variety is a next-to-minimal nilpotent coadjoint orbit. Moreover, for the Hermitian groups $\operatorname{SO}_0(2,n)$ and $E_{6(-14)}$ we study some branching problems of these next-to-minimal representations.
OriginalsprogEngelsk
TitelFestschrift volume in honor of T. Kobayashi
ForlagBirkhäuser Verlag
StatusAccepteret/In press - 18 sep. 2023

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21 pages

    Forskningsområder

  • math.RT

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