Search Results - "Goodwin, Simon M."
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Rational points on generalized flag varieties and unipotent conjugacy in finite groups of Lie type
Published in Transactions of the American Mathematical Society (01-01-2009)“…Let G be a connected reductive algebraic group defined over the finite field \mathbb {F}_q, where q is a power of a good prime for G. We write F for the…”
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Modular finite W-algebras
Published in International mathematics research notices (13-09-2019)“…Abstract Let ${\mathbb{k}}$ be an algebraically closed field of characteristic p > 0 and let G be a connected reductive algebraic group over ${\mathbb{k}}$…”
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The generic character table of a Sylow p-subgroup of a finite Chevalley group of type D4
Published in Communications in algebra (02-12-2017)“…Let U be a Sylow p-subgroup of the finite Chevalley group of type D 4 over the field of q elements, where q is a power of a prime p. We describe a construction…”
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Restricted shifted Yangians and restricted finite W-algebras
Published in Transactions of the American Mathematical Society. Series B (26-02-2021)“…We study the truncated shifted Yangian Y_{n,l}(\sigma ) over an algebraically closed field \Bbbk of characteristic p >0, which is known to be isomorphic to the…”
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Conjugacy Classes in Sylow p-Subgroups of Finite Chevalley Groups in Bad Characteristic
Published in Communications in algebra (03-08-2014)“…Let U = U(q) be a Sylow p-subgroup of a finite Chevalley group G = G(q). Röhrle and Goodwin in 2009 determined a parameterization of the conjugacy classes of…”
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COUNTING CONJUGACY CLASSES IN THE UNIPOTENT RADICAL OF PARABOLIC SUBGROUPS OF GLn(q)
Published in Pacific journal of mathematics (01-03-2010)Get full text
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On $\mathfrak {sl}_{2}$-Triples for Classical Algebraic Groups in Positive Characteristic
Published in Transformation groups (01-09-2024)“…Abstract Let $\mathbb {k}$ k be an algebraically closed field of characteristic p > 2. Let G be one of the classical algebraic groups $\text {GL}_{n}(\mathbb…”
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On the conjugacy classes in maximal unipotent subgroups of simple algebraic groups
Published in Transformation groups (01-03-2006)“…Let G be a simple algebraic group over the algebraically closed field k of characteristic p ≥ 0. Assume p is zero or good for G. Let B be a Borel subgroup of…”
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On ð-~ð-'2-Triples for Classical Algebraic Groups in Positive Characteristic
Published in Transformation groups (01-01-2024)“…Let k be an algebraically closed field of characteristic p > 2. Let G be one of the classical algebraic groups GLn(k), SLn(k), Spn(k), On(k) or SOn(k), and let…”
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On 𝖘𝖑2-Triples for Classical Algebraic Groups in Positive Characteristic
Published in Transformation groups (2024)“…Let k be an algebraically closed field of characteristic p > 2. Let G be one of the classical algebraic groups GL n ( k ) , SL n ( k ) , Sp n ( k ) , O n ( k )…”
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Orbits of parabolic subgroups on metabelian ideals
Published in Bulletin des sciences mathématiques (2009)“…Let k be an algebraically closed field, t ∈ Z ⩾ 1 , and let B be the Borel subgroup of GL t ( k ) consisting of upper-triangular matrices. Let Q be a parabolic…”
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The Modality of a Borel Subgroup in a Simple Algebraic Group of Type E 8
Published in Experimental mathematics (01-09-2020)Get full text
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The Modality of a Borel Subgroup in a Simple Algebraic Group of Type E8
Published in Experimental mathematics (01-09-2020)“…Let G be a simple algebraic group over an algebraically closed field k, where char k is either 0 or a good prime for G. We consider the modality of the action…”
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The generic character table of a Sylow p -subgroup of a finite Chevalley group of type D 4
Published in Communications in algebra (02-12-2017)Get full text
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Constructing characters of Sylow p-subgroups of finite Chevalley groups
Published in Journal of algebra (15-12-2016)“…Let q be a power of a prime p, let G be a finite Chevalley group over Fq and let U be a Sylow p-subgroup of G; we assume that p is not a very bad prime for G…”
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Non-integral representation theory of even multiplicity finite W-algebras
Published in Journal of algebra (15-04-2013)“…We complete the classification of the finite dimensional irreducible representations of finite W-algebras associated to even multiplicity nilpotent elements in…”
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A note on Verma modules for finite W-algebras
Published in Journal of algebra (01-10-2010)“…A finite W-algebra U ( g , e ) is a certain finitely generated algebra associated to a nilpotent element e of a complex reductive Lie algebra g . There is a…”
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Good grading polytopes
Published in Proceedings of the London Mathematical Society (01-01-2007)“…Let 𝔤 be a finite-dimensional semisimple Lie algebra over ℂ and e ∈ 𝔤 a nilpotent element. Elashvili and Kac have recently classified all good ℤ-gradings for…”
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On changing highest weight theories for finite W-algebras
Published in Journal of algebraic combinatorics (01-02-2013)“…A highest weight theory for a finite W -algebra was developed in Brundan et al. (Int. Math. Res. Not. 15:rnn051, 2008 ). This leads to a strategy for…”
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Finite dimensional irreducible representations of finite W-algebras associated to even multiplicity nilpotent orbits in classical Lie algebras
Published in Mathematische Zeitschrift (01-02-2013)“…We consider finite W -algebras associated to even multiplicity nilpotent elements in classical Lie algebras. We give a classification of finite dimensional…”
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