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Published in 2021 at "Inventiones Mathematicae"
DOI: 10.1007/s00222-021-01032-6
Abstract: We establish an explicit Plancherel decomposition for $${{\,\mathrm{\mathrm {GL}}\,}}_n(F){\backslash } {{\,\mathrm{\mathrm {GL}}\,}}_n(E)$$ where E/F is a quadratic extension of local fields of characteristic zero by making use of a local functional equation for Asai $$\gamma…
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Keywords:
mathrm mathrm;
mathrm;
mathrm backslash;
ichino ikeda ... See more keywords
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Published in 2018 at "Bulletin of the Iranian Mathematical Society"
DOI: 10.1007/s41980-020-00376-8
Abstract: We show that the simple unitary groups $$U_3(q)$$ U 3 ( q ) and $$U_4(q)$$ U 4 ( q ) , with $$2< q < 10^2$$ 2 < q < 10 2 a prime power,…
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Keywords:
unitary groups;
characterization simple;
simple unitary;
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1
Published in 2022 at "Advances in Mathematics"
DOI: 10.1016/j.aim.2022.108188
Abstract: We study the theta lifting for real unitary groups and completely determine the theta lifts of tempered representations. In particular, we show that the theta lifts of (limits of) discrete series representations can be expressed…
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Keywords:
unitary groups;
tempered representations;
theta lifting;
representations real ... See more keywords
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1
Published in 2020 at "Journal of Algebra"
DOI: 10.1016/j.jalgebra.2019.02.039
Abstract: Abstract We prove an “nth moment =1” result for irreducible Weil representations of degree ( q n + 1 ) / ( q + 1 ) of special unitary groups SU n ( q )…
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Keywords:
moments weil;
special unitary;
unitary groups;
finite special ... See more keywords
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Published in 2020 at "Journal of Algebra"
DOI: 10.1016/j.jalgebra.2019.02.043
Abstract: Abstract Concise presentations for groups are useful for both theoretical and computational purposes. We give short 2-generator presentations for the 3-dimensional unitary groups U 3 ( q ) and S U 3 ( q )…
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Keywords:
unitary groups;
presentations unitary;
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Published in 2020 at "Journal of Algebra"
DOI: 10.1016/j.jalgebra.2019.10.003
Abstract: Abstract This paper gives a detailed and explicit description of all the 2-minimal subgroups for the finite linear and unitary groups defined over fields of odd characteristic. Also the 2-minimal subgroups of all the subgroups…
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Keywords:
monomial linear;
minimal subgroups;
unitary groups;
linear unitary ... See more keywords
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Published in 2018 at "Journal of Pure and Applied Algebra"
DOI: 10.1016/j.jpaa.2017.11.002
Abstract: In this paper we define odd dimensional unitary groups $U_{2n+1}(R,\Delta)$. These groups contain as special cases the odd dimensional general linear groups $GL_{2n+1}(R)$ where $R$ is any ring, the odd dimensional orthogonal and symplectic groups…
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Keywords:
structure odd;
dimensional unitary;
unitary groups;
normal structure ... See more keywords
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Published in 2021 at "Journal of Pure and Applied Algebra"
DOI: 10.1016/j.jpaa.2020.106518
Abstract: Abstract Let G be a general linear or unitary group over a finite field of odd characteristic and let D ≤ G be a Sylow 2-subgroup. In this paper, we classify essential subgroups of the…
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Keywords:
essential rank;
unitary groups;
general linear;
linear unitary ... See more keywords
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Published in 2019 at "Communications in Algebra"
DOI: 10.1080/00927872.2019.1677689
Abstract: Abstract For an odd quadratic space of Witt index over a commutative ring with pseudoinvolution, we classify the subgroups of the odd unitary group that are normalized by the elementary subgroup defined by a hyperbolic…
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Keywords:
normal structure;
unitary groups;
petrov odd;
odd unitary ... See more keywords
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1
Published in 2021 at "Communications in Algebra"
DOI: 10.1080/00927872.2021.1926472
Abstract: Abstract We calculate characters of Weil representations of unitary groups over finite fields geometrically. As a byproduct, we deduce another proof of Gérardin’s trace formula for the Weil representation. Our main ingredient is an explicit…
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Keywords:
weil representations;
representations unitary;
finite fields;
unitary groups ... See more keywords
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Published in 2019 at "Journal of Group Theory"
DOI: 10.1515/jgth-2018-0151
Abstract: Abstract Let 𝒪{\mathcal{O}} be an involutive discrete valuation ring with residue field of characteristic not 2. Let A be a quotient of 𝒪{\mathcal{O}} by a nonzero power of its maximal ideal, and let *{*} be…
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Keywords:
clifford theory;
theory;
unitary groups;
representations unitary ... See more keywords