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We propose a deformed version of the generalized Heisenberg algebra by using techniques borrowed from the theory of pseudo-bosons. In particular, this analysis is relevant when non self-adjoint Hamiltonians are needed to describe a given…

Mathematical Physics · Physics 2018-04-04 Fabio Bagarello , Evaldo M. F. Curado , Jean-Pierre Gazeau

These notes give an elementary introduction to Lie groups, Lie algebras, and their representations. Designed to be accessible to graduate students in mathematics or physics, they have a minimum of prerequisites. Topics include definitions…

Mathematical Physics · Physics 2007-05-23 Brian C. Hall

We set up foundations of representation theory over $S$, the sphere spectrum, which is the `initial ring' of stable homotopy theory. In particular, we treat $S$-Lie algebras and their representations, characters, $gl_n(S)$-Verma modules and…

Algebraic Topology · Mathematics 2018-10-25 Po Hu , Igor Kriz , Petr Somberg

We develop the theory of generalized bi-Hamiltonian reduction. Applying this theory to a suitable loop algebra we recover a generalized Drinfeld-Sokolov reduction. This gives a way to construct new examples of algebraic Frobenius manifolds.

Exactly Solvable and Integrable Systems · Physics 2009-11-13 Yassir Ibrahim Dinar

In a previous work the authors gave a conceptual explanation for the linearity of the Weil representation over a finite field k of odd characteristic: There exists a canonical system of intertwining operators between the Lagrangian models…

Representation Theory · Mathematics 2011-08-02 Shamgar Gurevich , Ronny Hadani

We develop some basic homological theory of hopfological algebra as defined by Khovanov. Several homological properties in hopfological algebra analogous to those of usual homological theory of DG algebras are obtained.

K-Theory and Homology · Mathematics 2019-02-20 You Qi

We give a simple, combinatorial construction of a unital, spherical, non-degenerate $\ast$-planar algebra over the ring $\mathbb{Z}[q^{1/2},q^{-1/2}]$. This planar algebra is similar in spirit to the Temperley-Lieb planar algebra, but…

Geometric Topology · Mathematics 2015-11-06 Lawrence Roberts

An algebraic extended bilinear Hilbert semispace is proposed as being the natural representation space for the algebras of von Neumann.This bilinear Hilbert semispace has a well defined structure given by the representation space of an…

General Mathematics · Mathematics 2010-03-11 Christian Pierre

We construct knot invariants categorifying the quantum knot variants for all representations of quantum groups. We show that these invariants coincide with previous invariants defined by Khovanov for sl_2 and sl_3 and by Mazorchuk-Stroppel…

Geometric Topology · Mathematics 2017-11-15 Ben Webster

We carry out the complete group classification of the class of (1+1)-dimensional linear Schr\"odinger equations with complex-valued potentials. After introducing the notion of uniformly semi-normalized classes of differential equations, we…

Mathematical Physics · Physics 2018-03-07 Célestin Kurujyibwami , Peter Basarab-Horwath , Roman O. Popovych

We prove that the extended Khovanov arc algebras are isomorphic to the basic algebras of anti-spherical Hecke categories for maximal parabolics of symmetric groups. We present these algebras by quiver and relations and provide the full…

Representation Theory · Mathematics 2023-09-26 Chris Bowman , Maud De Visscher , Amit Hazi , Catharina Stroppel

With the aid of the $6j$-symbol, we classify all uniserial modules of $\mathfrak{sl}(2)\ltimes \mathfrak{h}_{n}$, where $\mathfrak{h}_{n}$ is the Heisenberg Lie algebra of dimension $2n+1$.

Representation Theory · Mathematics 2016-11-23 Leandro Cagliero , Luis Gutiérrez Frez , Fernando Szechtman

Categorified quantum groups play an increasing role in quantum topology and representation theory. The Steenrod algebra is a fundamental component of algebraic topology. In this paper we show that categorified quantum groups can be extended…

Quantum Algebra · Mathematics 2013-04-29 Anna Beliakova , Benjamin Cooper

We classify all the hyperspherical equivariant slices of reductive groups. The classification is $S$-dual to the one of basic classical Lie superalgebras.

Algebraic Geometry · Mathematics 2025-07-04 Michael Finkelberg , Ivan Ukraintsev

This article contains a review of categorifications of semisimple representations of various rings via abelian categories and exact endofunctors on them. A simple definition of an abelian categorification is presented and illustrated with…

Representation Theory · Mathematics 2007-05-23 Mikhail Khovanov , Volodymyr Mazorchuk , Catharina Stroppel

We give a simple and complete picture on the classification of relative Cuntz--Pimsner algebras (and so also of gauge-equivariant representations) using their intuitive parametrisation by kernel--covariance pairs.

Operator Algebras · Mathematics 2023-01-10 Alexander Frei

In this paper we introduce and study a categorical action of the positive part of the Heisenberg Lie algebra on categories of modules over rational Cherednik algebras associated to symmetric groups. We show that the generating functor for…

Representation Theory · Mathematics 2024-08-06 Roman Bezrukavnikov , Ivan Losev

In a recent paper by the authors, Lie bialgebra structures on generalized Heisenberg- Virasoro algebra L are considered. In this paper, the explicit formula of the quantization on generalized Heisenberg-Virasoro algebra is presented.

Quantum Algebra · Mathematics 2012-10-30 Haibo Chen , Ran Shen , Jiangang Zhang

The Khovanov-Lauda-Rouquier (KLR) algebra arose out of attempts to categorify quantum groups. Kleshchev and Ram proved a result reducing the representation theory of these algebras to the study of irreducible cuspidal representations. In…

Representation Theory · Mathematics 2015-05-21 Gabriel Feinberg , Kyu-Hwan Lee

For every oriented surface of finite type, we construct a functorial Khovanov homology for links in a thickening of the surface, which takes values in a categorification of the corresponding gl(2) skein module. The latter is a mild…

Quantum Algebra · Mathematics 2018-06-12 Hoel Queffelec , Paul Wedrich