Results 21 to 30 of about 3,438 (167)

A preorder-free construction of the Kazhdan-Lusztig representations of $S_n$, with connections to the Clausen representations [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2009
We use the polynomial ring $\mathbb{C}[x_{1,1},\ldots,x_{n,n}]$ to modify the Kazhdan-Lusztig construction of irreducible $S_n$-modules. This modified construction produces exactly the same matrices as the original construction in [$\textit{Invent. Math}$
Charles Buehrle, Mark Skandera
doaj   +1 more source

BasisGen: automatic generation of operator bases

open access: yesEuropean Physical Journal C: Particles and Fields, 2019
BasisGen is a Python package for the automatic generation of bases of operators in effective field theories. It accepts any semisimple symmetry group and fields in any of its finite dimensional irreducible representations.
Juan Carlos Criado
doaj   +1 more source

Quantum Analogs of Tensor Product Representations of su(1,1)

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2011
We study representations of U_q(su(1,1)) that can be considered as quantum analogs of tensor products of irreducible *-representations of the Lie algebra su(1,1).
Wolter Groenevelt
doaj   +1 more source

On irreducible projective representations of finite groups [PDF]

open access: yesSurveys in Mathematics and its Applications, 2009
The paper is a survey type article inwhich we present some results on irreducible projective representations offinite groups. Section 2 includes Curtis and Reiner's theorem inwhich is proved that a finite group has at most a finite number ofinequivalent ...
Tania-Luminiţa Costache
doaj  

ON GENERALIZATION OF SPECIAL FUNCTIONS RELATED TO WEYL GROUPS

open access: yesActa Polytechnica, 2016
Weyl group orbit functions are defined in the context of Weyl groups of simple Lie algebras. They are multivariable complex functions possessing remarkable properties such as (anti)invariance with respect to the corresponding Weyl group, continuous and ...
Lenka Háková, Agnieszka Tereszkiewicz
doaj   +1 more source

Automorphy lifting with adequate image

open access: yesForum of Mathematics, Sigma, 2023
Let F be a CM number field. We generalise existing automorphy lifting theorems for regular residually irreducible p-adic Galois representations over F by relaxing the big image assumption on the residual representation.
Konstantin Miagkov, Jack A. Thorne
doaj   +1 more source

On the irreducible representations of a finite semigroup [PDF]

open access: yesProceedings of the American Mathematical Society, 2009
Work of Clifford, Munn and Ponizovski{\uı} parameterized the irreducible representations of a finite semigroup in terms of the irreducible representations of its maximal subgroups. Explicit constructions of the irreducible representations were later obtained independently by Rhodes and Zalcstein and by Lallement and Petrich.
Ganyushkin, Olexandr   +2 more
openaire   +3 more sources

Irreducible representations of the Poincare parasuperalgebra [PDF]

open access: yesJournal of Physics A: Mathematical and General, 1995
Summary: We explicitly describe all the irreducible unitary representations of the Poincaré parasuperalgebra, i.e. the parasupersymmetric extension of the Lie algebra of the Poincaré group. This parasuperalgebra includes, as a particular case, the usual Poincaré superalgebra and can serve as the group-theoretical foundation of parasupersymmetric ...
Nikitin, A. G., Tretynyk, V. V.
openaire   +1 more source

Irreducible representations of simple Lie algebras by differential operators

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
We describe a systematic method to construct arbitrary highest-weight modules, including arbitrary finite-dimensional representations, for any finite dimensional simple Lie algebra $${\mathfrak {g}}$$ g .
A. Morozov   +3 more
doaj   +1 more source

Irreducible representations of $\mathbb{Z}_2^2$-graded supersymmetry algebra and their applications

open access: yesSciPost Physics Proceedings, 2023
We give a brief review on recent developments of $\mathbb{Z}_2^n$-graded symmetry in physics in which hidden $\mathbb{Z}_2^n$-graded symmetries and $\mathbb{Z}_2^n$-graded extensions of known systems are discussed.
Naruhiko Aizawa
doaj   +1 more source

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