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Up to equivalence, this paper classifies all the irreducible unitary representations with non-zero Dirac cohomology for the simple Lie group $E_{6(-14)}$, which is of Hermitian symmetric type. Each FS-scattered Dirac series of $E_{6(-14)}$…

Representation Theory · Mathematics 2021-10-12 Lin-Gen Ding , Chao-Ping Dong , Haian He

Lie-theoretic structures of type $E_8$ (e.g., Lie groups and algebras, Hecke algebras and Kazhdan-Lusztig cells, ...) are considered to serve as a `gold standard' when it comes to judging the effectiveness of a general algorithm for solving…

Representation Theory · Mathematics 2017-05-09 Meinolf Geck , Jürgen Müller

Using octonions and the triality property of Spin(8), we find explicit formulae for the Lie brackets of the exceptional simple real Lie algebras $\mathfrak{f}_4$ and $\mathfrak{f}^*_4$, i.e. the Lie algebras of the isometry groups of the…

Differential Geometry · Mathematics 2018-05-30 Andreas Kollross

We introduce invariant algebras and representation$^{(c_1,..., c_8)}$ of algebras, and give many ways of constructing Lie algebras, Jordan algebras, Leibniz algebras, pre-Lie algebras and left-symmetric algebras in an invariant algebras.

Rings and Algebras · Mathematics 2011-04-21 Keqin Liu

Many relevant applications of group theoretical methods to physical problems are related, in some manner, to classification schemes by means of symmetry groups. In these schemes, irreducible representations of a Lie group have to be…

High Energy Physics - Theory · Physics 2008-05-21 R. Campoamor-Stursberg

A simplified construction of representations is presented for the quantized enveloping algebra Uq(g), with g being a simple complex Lie algebra belonging to one of the four principal series A, B, C or D. The carrier representation space is…

Quantum Algebra · Mathematics 2007-05-23 P. Stovicek

We construct a family of exact functors from the BGG category of representations of the Lie algebra sl to the category of finite-dimensional representations of the degenerate (or graded) affine Hecke algebra H of GL. These functors…

q-alg · Mathematics 2007-05-23 T. Arakawa , T. Suzuki

This paper is concerned with the description of exceptional simple Lie algebras as octonionic analogues of the classical matrix Lie algebras. We review the Tits-Freudenthal construction of the magic square, which includes the exceptional…

Rings and Algebras · Mathematics 2007-05-23 C H Barton , A Sudbery

One of the four well-known series of simple Lie algebras of Cartan type is the series of Lie algebras of Special type, which are divergence-free Lie algebras associated with polynomial algebras and the operators of taking partial…

Quantum Algebra · Mathematics 2007-05-23 Yucai Su , Xiaoping Xu

An algorithm for embedding finite dimensional Lie algebras into Lie algebras of vector fields (and Lie superalgebras into Lie superalgebras of vector fields) is offered in a way applicable over ground fields of any characteristic. The…

Representation Theory · Mathematics 2009-11-11 Irina Shchepochkina

This article can be viewed as a continuation of the articles arXiv:0912.3486 and arXiv:1012.3714 where the decomposable Lie algebras admitting half-flat SU(3)-structures are classified. The new main result is the classification of the…

Differential Geometry · Mathematics 2013-02-06 Marco Freibert , Fabian Schulte-Hengesbach

In this thesis we consider the maximal subalgebras of the exceptional Lie algebras in algebraically closed fields of positive characteristic. This begins with a quick recap of the article by Herpel and Stewart which considered the Cartan…

Rings and Algebras · Mathematics 2018-03-20 Thomas Purslow

Using a new presentation for partition algebras (J. Algebraic Combin. 37(3):401-454, 2013), we derive explicit combinatorial formulae for the seminormal representations of the partition algebras. These results generalise to the partition…

Quantum Algebra · Mathematics 2013-07-04 John Enyang

We present a formalization, in the theorem prover Lean, of the classification of solvable Lie algebras of dimension at most three over arbitrary fields. Lie algebras are algebraic objects which encode infinitesimal symmetries, and as such…

Logic in Computer Science · Computer Science 2025-05-27 Viviana del Barco , Gustavo Infanti , Exequiel Rivas , Paul Schwahn

Revisiting the results by Winternitz [Symmetry in physics, CRM Proc. Lecture Notes 34, American Mathematical Society, Providence, RI, 2004, pp. 215-227], we thoroughly refine his classification of Lie subalgebras of the real order-three…

Mathematical Physics · Physics 2025-08-19 Yevhenii Yu. Chapovskyi , Serhii D. Koval , Olha Zhur

We give a construction of an affine Hecke algebra associated to any Coxeter group acting on an abelian variety by reflections; in the case of an affine Weyl group, the result is an elliptic analogue of the usual double affine Hecke algebra.…

Algebraic Geometry · Mathematics 2020-11-06 Eric M. Rains

Loday's dendriform algebras and its siblings pre-Lie and zinbiel have received attention over the past two decades. In recent literature, there has been interest in a generalization of these types of algebra in which each individual…

Rings and Algebras · Mathematics 2020-07-14 Marcelo Aguiar

In this paper we study the partial Brauer $\mathbb{C}$-algebras $\mathfrak{R}_n(\delta,\delta')$, where $n \in \mathbb{N}$ and $\delta,\delta'\in\mathbb{C}$. We show that these algebras are generically semisimple, construct the Specht…

Representation Theory · Mathematics 2017-05-10 Paul Martin , Volodymyr Mazorchuk

We describe the main algebraic and geometric properties of the class of algebras introduced in [arXiv:0705.1629]. We discuss their origins in symplectic geometry and associative algebra, and the notions of cohomology and representations. We…

Mathematical Physics · Physics 2008-12-18 Valentin Ovsienko

We introduce families of maximal commutative subalgebras, called Bethe subalgebras, of the group algebra of the symmetric group. Bethe subalgebras are deformations of the Gelfand-Zetlin subalgebra. We describe various properties of Bethe…

Quantum Algebra · Mathematics 2013-03-19 E. Mukhin , V. Tarasov , A. Varchenko