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Using combinatorial properties of symmetric polynomials, we compute explicitly the Soergel modules for some permutations whose corresponding Schubert varieties are rationally smooth. We build from them diagram algebras whose module…

Representation Theory · Mathematics 2013-11-28 Antonio Sartori

We study twisted modules for (weak) quantum vertex algebras and we give a conceptual construction of (weak) quantum vertex algebras and their twisted modules. As an application we construct and classify irreducible twisted modules for a…

Quantum Algebra · Mathematics 2008-12-18 Haisheng Li , Shaobin Tan , Qing Wang

We present an abstract framework for the axiomatic study of diagram algebras. Algebras that fit this framework possess analogues of both the Murphy and seminormal bases of the Hecke algebras of the symmetric groups. We show that the…

Representation Theory · Mathematics 2017-05-29 Christopher Bowman , John Enyang , Frederick Goodman

We explain how the theory of sandwich cellular algebras can be seen as a version of cell theory for algebras. We apply this theory to many examples such as Hecke algebras, and various monoid and diagram algebras.

Representation Theory · Mathematics 2026-04-07 Daniel Tubbenhauer

A description of the real, complete modules over the Clifford algebra of a Hilbert space, with the elements of the latter acting by skew-symmetric operators.

Representation Theory · Mathematics 2007-05-23 E. Galina , A. Kaplan , L. Saal

A class of skew derivations on complex Noetherian generalized down-up algebras $L=L(f,r,s,\gamma)$ is constructed.

Rings and Algebras · Mathematics 2017-12-29 Munerah Almulhem , Tomasz Brzeziński

In this article, we realize skew-gentle algebras as skew-tiling algebras associated to admissible partial triangulations of punctured marked surfaces. Based on this, we establish a bijection between tagged permissible curves and certain…

Representation Theory · Mathematics 2023-04-05 Ping He , Yu Zhou , Bin Zhu

We develop a theory of toroidal vertex algebras and their modules, and we give a conceptual construction of toroidal vertex algebras and their modules. As an application, we associate toroidal vertex algebras and their modules to toroidal…

Quantum Algebra · Mathematics 2012-01-30 Haisheng Li , Shaobin Tan , Qing Wang

We modify a previous result, which showed that certain diagrams of spaces are essentially simplicial monoids, to construct diagrams of spaces which model simplicial groups. Furthermore, we show that these diagrams can be generalized to…

Algebraic Topology · Mathematics 2013-01-04 Julia E. Bergner

We consider a central extension of the sheaf of Lie algebras of maps from a manifold into a finite-dimensional simple Lie algebra, together with the sheaf of vector fields. Using vertex algebra methods we construct sheaves of modules for…

Representation Theory · Mathematics 2011-09-13 Yuly Billig

We describe the generic modules in each component of the spaces of representations of certain string algebras. In so doing, we calculate the dimensions of higher self-extension groups for generic modules. This algorithm lends itself for use…

Representation Theory · Mathematics 2011-11-23 Andrew Thomas Carroll

We introduce cell modules for the tabular algebras defined in a previous work (math.QA/0107230); these modules are analogous to the representations arising from left Kazhdan--Lusztig cells. The standard modules of the title are constructed…

Quantum Algebra · Mathematics 2007-05-23 R. M. Green

In this work we develop some categorical aspects of the double structure of a module.

Algebraic Geometry · Mathematics 2023-08-30 Thiago F. da Silva

We define a skew-closed structure for Gray-categories extending the mapping space construction of the author.

Category Theory · Mathematics 2016-12-14 Björn Gohla

For any skew symmetric matrix over complex numbers, we introduce an EALA and it is called Skew Symmetric Extended Affine Lie Algebra (SSEALA). This way we get a large class of EALAs and most often they are non-isomorphic. In this paper we…

Representation Theory · Mathematics 2026-02-16 S. Eswara Rao , Priyanshu Chakraborty

The notion of crossed modules for Lie 2-algebras is introduced. We show that, associated to such a crossed module, there is a strict Lie 3-algebra structure on its mapping cone complex and a strict Lie 2-algebra structure on its…

Rings and Algebras · Mathematics 2014-03-03 Honglei Lang , Zhangju Liu

We give a full classification, in terms of periodic skew diagrams, of irreducible semisimple modules in category O for the degenerate double affine Hecke algebra of type A which can be realized as submodules of Verma modules.

Representation Theory · Mathematics 2016-08-09 Martina Balagovic

A cell algebra structure is found for a family of generalized Schur algebras previously studied by the author. This cell algebra structure is then used to construct the irreducible representations of these algebras and to determine when the…

Representation Theory · Mathematics 2016-01-18 Robert D. May

The Temperley-Lieb and Brauer algebras and their cyclotomic analogues, as well as the partition algebra, are all examples of twisted semigroup algebras. We prove a general theorem about the cellularity of twisted semigroup algebras of…

Rings and Algebras · Mathematics 2010-10-08 Stewart Wilcox

An explicit vertex operator algebra construction is given of a class of irreducible modules for toroidal Lie algebras.

Quantum Algebra · Mathematics 2007-05-23 S. Berman , Y. Billig , J. Szmigielski
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