On the algebra of symmetries of Laplace and Dirac operators

H De Bie, R Oste, J Van der Jeugt - Letters in Mathematical Physics, 2018 - Springer
We consider a generalization of the classical Laplace operator, which includes the Laplace–
Dunkl operator defined in terms of the differential-difference operators associated with finite …

Darboux transformations for super-Schrödinger equation, super-Dirac equation and their exact solutions

F Yu, L Feng, L Li - Nonlinear Dynamics, 2017 - Springer
The Darboux transformation (DT) for the super-integrable hierarchy has an essential
difference from the general system. As we know, the super-integrable soliton equation …

[HTML][HTML] The harmonic transvector algebra in two vector variables

H De Bie, D Eelbode, M Roels - Journal of Algebra, 2017 - Elsevier
The decomposition of polynomials of one vector variable into irreducible modules for the
orthogonal group is a crucial result in harmonic analysis which makes use of the Howe …

[PDF][PDF] Topics in representation theory of the Dunkl total angular momentum algebra

A Langlois-Rémillard - 2023 - alexisl-r.github.io
Mathematics does not happen in a vacuum. Mathematicians, those who do mathematics, are
the people infusing life in the theory. Subjects are studied and established from sparks and …

Generalised symmetries and bases for Dunkl monogenics

H De Bie, A Langlois-Rémillard, R Oste… - … Mountain Journal of …, 2023 - projecteuclid.org
We introduce a family of commuting generalised symmetries of the Dunkl–Dirac operator
inspired by the Maxwell construction in harmonic analysis. As an application, we use these …

A Lie algebra of Grassmannian Dirac operators and vector variables

AK Bisbo, H De Bie, J Van der Jeugt - arXiv preprint arXiv:2110.02091, 2021 - arxiv.org
The Lie algebra generated by $ m\$$ p $-dimensional Grassmannian Dirac operators and $
m\$$ p $-dimensional vector variables is identified as the orthogonal Lie algebra $\mathfrak …

Fischer decomposition for polynomials on superspace

R Lávička, D Šmíd - Journal of Mathematical Physics, 2015 - pubs.aip.org
Recently, the Fischer decomposition for polynomials on superspace ℝ m| 2n (that is,
polynomials in m commuting and 2n anti-commuting variables) has been obtained unless …

Generalized Cauchy–Kovalevskaya extension and plane wave decompositions in superspace

A Guzmán Adán - Annali di Matematica Pura ed Applicata (1923-), 2021 - Springer
The aim of this paper is to obtain a generalized CK-extension theorem in superspace for the
biaxial Dirac operator ∂ _ x+ ∂ _ y∂ x+∂ y. In the classical commuting case, this result can …

Vortex dynamics and symplectic Dirac operators

G Muarem - 2023 - repository.uantwerpen.be
The CCR (canonical commuting relation) and CAR algebras (canonical anticommuting
relation) are fundamental algebras in theoretical physics used for the study of bosons and …

The spin group in superspace

H De Schepper, AG Adán, F Sommen - arXiv preprint arXiv:1804.00963, 2018 - arxiv.org
There are two well-known ways of describing elements of the rotation group SO $(m) $. First,
according to the Cartan-Dieudonn\'e theorem, every rotation matrix can be written as an …