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Related papers: Affine Matsuki correspondence for sheaves

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We construct a mirabolic analogue of the geometric Satake equivalence. We also prove an equivalence that relates representations of a supergroup with the category of $GL(N-1,{\mathbb C}[\![t]\!])$-equivariant perverse sheaves on the affine…

Representation Theory · Mathematics 2023-06-22 Alexander Braverman , Michael Finkelberg , Victor Ginzburg , Roman Travkin

We show that tilting modules and parity sheaves on the affine Grassmannian are related through the geometric Satake correspondence, when the characteristic is bigger than an explicit bound.

Representation Theory · Mathematics 2016-11-18 Daniel Juteau , Carl Mautner , Geordie Williamson

In this article, a new construction of derived equivalences is given. It relates different endomorphism rings and more generally cohomological endomorphism rings - including higher extensions - of objects in triangulated categories. These…

Representation Theory · Mathematics 2011-02-15 Wei Hu , Steffen Koenig , Changchang Xi

We discuss relations between the motives of two varieties with equivalent derived categories of coherent sheaves.

Algebraic Geometry · Mathematics 2015-06-26 Dmitri Orlov

We establish a one-to-one correspondence between the set of minimal exponential families of dimension n defined on a finite sample space {\Omega} and the affine Grassmannian associated to an appropriate vector space of functions.

Differential Geometry · Mathematics 2025-02-20 Danuzia Nascimento Figueirêdo , Hale Aytaç , Mathieu Molitor

We prove that the bounded derived category of coherent sheaves with proper support is equivalent to the category of locally-finite, cohomological functors on the perfect derived category of a quasi-projective scheme over a field. We…

Algebraic Geometry · Mathematics 2011-05-18 Matthew Robert Ballard

Fargues and Scholze proved the geometric Satake equivalence over the Fargues-Fontaine curve. This can be transferred to the geometric Satake equivalence concerning a Witt vector affine Grassmannian via nearby cycle. On the other hand, Zhu…

Number Theory · Mathematics 2026-03-16 Katsuyuki Bando

We explore the notion of representation of an affine extension of an abelian variety -- such an extension is a faithfully flat affine morphism of $\Bbbk$-group schemes $q:G\to A$, where $A$ is an abelian variety. We characterize the…

Algebraic Geometry · Mathematics 2020-08-26 Alvaro Rittatore , Pedro Luis del Angel , Walter Ferrer Santos

In his study of Kazhdan-Lusztig cells in affine type $A$, Shi has introduced an affine analog of Robinson-Schensted correspondence. We generalize the Matrix-Ball Construction of Viennot and Fulton to give a more combinatorial realization of…

Combinatorics · Mathematics 2017-10-31 Michael Chmutov , Pavlo Pylyavskyy , Elena Yudovina

This paper is the first in a series. The main goal of the series is to present a geometric construction of certain remarkable tensor categories arising from quantum groups coresponding to the value of deformation parameter $q$ equal to a…

High Energy Physics - Theory · Physics 2008-02-03 M. Finkelberg , V. Schechtman

This work studies $t$-structures for the derived category of quasi-coherent sheaves on a quasi-compact quasi-separated algebraic stack. Specifically, using Thomason filtrations, we classify those $t$-structures which are generated by…

Algebraic Geometry · Mathematics 2025-07-04 Pat Lank

A theorem by Orlov states that any equivalence between the bounded derived categories of coherent sheaves of two smooth projective varieties, X and Y, is isomorphic to a Fourier-Mukai transform with kernel in the bounded derived category of…

Algebraic Geometry · Mathematics 2012-10-05 Alice Rizzardo

We study affine Jacobi structures on an affine bundle $\pi:A\to M$, i.e. Jacobi brackets that close on affine functions. We prove that there is a one-to-one correspondence between affine Jacobi structures on $A$ and Lie algebroid structures…

Differential Geometry · Mathematics 2007-05-23 J. Grabowski , D. Iglesias , J. C. Marrero , E. Padrón , P. Urbański

In these notes, we survey the homology of the loop group Omega(K) of a compact group K, also known as the affine Grassmannian of a complex loop group. Using the Bott picture of H_*(Omega(K)), the homology algebra or Pontryagin ring, we…

Representation Theory · Mathematics 2007-05-28 Peter Magyar

Whittaker sheaves are ubiquitous in geometric representation theory; however, their definition requires one to restrict the sheaf-theoretic setting to either \'etale sheaves or $D$-modules. Gaitsgory and Lysenko proposed a solution to this…

Representation Theory · Mathematics 2026-04-03 Colton Sandvik

We formulate two-dimensional rational conformal field theory as a natural generalization of two-dimensional lattice topological field theory. To this end we lift various structures from complex vector spaces to modular tensor categories.…

High Energy Physics - Theory · Physics 2009-11-07 J. Fuchs , I. Runkel , C. Schweigert

We relate shuffle algebras, as defined by Nichols, Feigin-Odesskii and Rosso, to perverse sheaves on symmetric products of the complex line (i.e., on the spaces of monic polynomials stratified by multiplicities of roots). More precisely, we…

Algebraic Topology · Mathematics 2020-01-14 Mikhail Kapranov , Vadim Schechtman

Inspired by the work of Rostam, we establish an explicit categorical equivalence between affine Yokonuma-Hecke algebras and quiver Hecke algebras associated to disjoint copies of quivers of (affine) type $A,$ generalizing Rouquier's…

Representation Theory · Mathematics 2016-06-01 Weideng Cui

We construct an equivalence of categories from a strong categorical sl(2) action, following the work of Chuang-Rouquier. As an application, we give an explicit, natural equivalence between the derived categories of coherent sheaves on…

Algebraic Geometry · Mathematics 2011-07-01 Sabin Cautis , Joel Kamnitzer , Anthony Licata

We introduce a dynamical Mordell-Lang-type conjecture for coherent sheaves. When the sheaves are structure sheaves of closed subschemes, our conjecture becomes a statement about unlikely intersections. We prove an analogue of this…

Algebraic Geometry · Mathematics 2017-06-07 Jason P. Bell , Matthew Satriano , Susan J. Sierra
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