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Let V be an 2n-dimensional vector space over an algebraically closed field of odd characteristic. Let G = GL(V), and H = Sp(V) the symplectic group contained in G. For a positive integer r > 1, we conisder the variety X = G/H \times…

Representation Theory · Mathematics 2014-08-01 Toshiaki Shoji

This is a survey article on the Springer correspondence for symmetric spaces. We discuss various generalization of the theory of the Springer correspondence for reductive groups to symmetric spaces and exotic symmetric spaces associated to…

Representation Theory · Mathematics 2019-09-17 Toshiaki Shoji

The Lusztig-Shoji algorithm is generalized to a complex reflection group $W$ and give us a version of the Springer correspondence of $W$. We show that the combinatorics of generalized Springer correspondences of dihedral groups of order…

Representation Theory · Mathematics 2023-11-30 Susumu Higuchi

Let $G = GL(V)$ for an N-dimensional vector space $V$ over an algebraically closed field k, and $G^{\theta}$ the fixed point subgroup of $G$ under an involution $\theta$ on $G$. In the case where $G^{\theta} = O(V)$, the generalized…

Representation Theory · Mathematics 2018-05-24 Junbin Dong , Toshiaki Shoji , Gao Yang

In this paper, we obtain an explicit formula for the theta correspondence of unipotent principal-series representations between an even orthogonal and a symplectic group or between general linear groups over a finite field. The formula is…

Representation Theory · Mathematics 2025-12-18 Jia-Jun Ma , Congling Qiu , Zhiwei Yun , JiaLiang Zou

Let $G = GL_N$ over an algebraically closed field of odd characteristic, and $\theta$ an involutive automorphism on $G$ such that $H = (G^{\theta})^0$ is isomorphic to $SO_N$. Then $G^{\iota\theta} = \{ g \in G \mid \theta(g) = g^{-1} \}$…

Representation Theory · Mathematics 2020-04-13 Toshiaki Shoji , Gao Yang

Recent work by a number of people has shown that complex reflection groups give rise to many representation-theoretic structures (e.g., generic degrees and families of characters), as though they were Weyl groups of algebraic groups.…

Representation Theory · Mathematics 2007-09-05 Pramod N. Achar , Anne-Marie Aubert

In this paper we introduce a certain class of families of Hessenberg varieties arising from Springer theory for symmetric spaces. We study the geometry of those Hessenberg varieties and investigate their monodromy representations in detail…

Algebraic Geometry · Mathematics 2020-06-23 Tsao-Hsien Chen , Kari Vilonen , Ting Xue

We define a new family of algebraic varieties, called exotic Spaltenstein varieties. These generalise the notion of Spaltenstein varieties (which are the partial flag analogues to classical Springer fibres) to the case of exotic Springer…

Algebraic Geometry · Mathematics 2024-10-02 Daniele Rosso , Neil Saunders

This paper aims to systematically study mystic reflection groups that emerged independently in the paper [Selecta Math. (N.S.) 14 (2009), 325-372, arXiv:0806.0867] by the authors and in the paper [Algebr. Represent. Theory 13 (2010),…

Representation Theory · Mathematics 2014-04-07 Yuri Bazlov , Arkady Berenstein

We study the construction of a modular generalized Springer correspondence for a possibly disconnected complex reductive algebraic group.

Representation Theory · Mathematics 2025-06-09 Kostas I. Psaromiligkos , Simon Riche

We define a generalized Springer correspondence for the group GL(n) over any field. We also determine the cuspidal pairs, and compute the correspondence explicitly. Finally we define a stratification of the category of equivariant perverse…

Representation Theory · Mathematics 2016-06-27 Pramod N. Achar , Anthony Henderson , Daniel Juteau , Simon Riche

We give a combinatorial description of the Springer correspondence for classical Lie algebras $\mathfrak{g}$ of type $B,C$ or $D$ and their duals $\mathfrak{g}^*$ in characteristic 2. The combinatorics used here is of the same kind as those…

Representation Theory · Mathematics 2018-05-25 Ting Xue

In \cite{CVX3}, we have established a Springer theory for the symmetric pair $(\operatorname{SL}(N),\operatorname{SO}(N))$. In this setting we obtain representations of (the Tits extension) of the braid group rather than just Weyl group…

Representation Theory · Mathematics 2021-01-14 Tsao-Hsien Chen , Kari Vilonen , Ting Xue

In this paper we establish Springer correspondence for the symmetric pair $(\mathrm{SL}(N),\mathrm{SO}(N))$ using Fourier transform, parabolic induction functor, and a nearby cycle sheaves construction due to Grinberg. As applications, we…

Representation Theory · Mathematics 2020-06-23 Tsao-Hsien Chen , Kari Vilonen , Ting Xue

We give a common framework for the classification of projective spin irreducible representations of a Weyl group, modeled after the Springer correspondence for ordinary representations.

Representation Theory · Mathematics 2011-05-23 Dan Ciubotaru

Hierarchies of evolution equations of pseudo-spherical type are introduced, generalizing the notion of a single equation describing pseudo-spherical surfaces due to S.S. Chern and K. Tenenblat, and providing a connection between…

Exactly Solvable and Integrable Systems · Physics 2007-05-23 Enrique G. Reyes

We describe the Springer correspondence explicitly for exceptional Lie algebras of type $G_2$ and $F_4$ and their duals in bad characteristics, i.e. in characteristics 2 and 3.

Representation Theory · Mathematics 2020-06-23 Ting Xue

We close a gap in the explicit determination of the generalized Springer correspondence for a connected reductive group in good characteristic.

Representation Theory · Mathematics 2016-09-05 G. Lusztig

We generalize the Shimura-Waldspurger correspondence, which describes the generic part of the automorphic discrete spectrum of the metaplectic group $\mathrm{Mp}_2$, to the metaplectic group $\mathrm{Mp}_{2n}$ of higher rank. To establish…

Number Theory · Mathematics 2018-08-06 Wee Teck Gan , Atsushi Ichino
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