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We study a transform, inspired by coherent state transforms, from the Hilbert space of Clifford algebra valued square integrable functions $L^2({\mathbb R}^m,dx)\otimes {\mathbb C}_{m}$ to a Hilbert space of solutions of the Weyl equation…

Functional Analysis · Mathematics 2017-03-08 José Mourão , João P. Nunes , Tao Qian

Classical Segal-Bargmann theory studies three Hilbert space unitary isomorphisms that describe the wave-particle duality and the configuration space-phase space. In this work, we generalized these concepts to Clifford algebra-valued…

Functional Analysis · Mathematics 2021-09-14 Sorawit Eaknipitsari , Wicharn Lewkeeratiyutkul

We introduce two extensions of the Segal-Bargmann coherent state transform from $L^2({\mathbb R},dx)$ to Hilbert spaces of slice monogenic and axial monogenic functions and study their properties. These two transforms are related by the…

Mathematical Physics · Physics 2016-11-08 William D. Kirwin , José Mourão , João P. Nunes , Tao Qian

In this paper we work in the `split' discrete Clifford analysis setting, i.e. the m-dimensional function theory concerning null-functions, defined on the grid Z^m, of the discrete Dirac operator D, involving both forward and backward…

Representation Theory · Mathematics 2017-01-27 Hilde De Ridder , Tim Raeymaekers

In the framework of Clifford analysis, a chain of harmonic and monogenic potentials in the upper half of (m+1)-dimensional Euclidean space was recently constructed, including a higher dimensional analogue of the logarithmic function in the…

Functional Analysis · Mathematics 2016-10-05 Fred Brackx , Hendrik De Bie , Hennie De Schepper

We study isoparametric hypersurfaces, whose principal curvatures are all constant, in the pseudo-Riemannian space forms. In this paper, we investigate two topics. Firstly, according to representations of Clifford algebras, we give a…

Differential Geometry · Mathematics 2023-08-28 Yuta Sasahara

We prove that the Gram--Schmidt orthogonalization process can be carried out in Hilbert modules over Clifford algebras, in spite of the un-invertibility and the un-commutativity of general Clifford numbers. Then we give two crucial…

Functional Analysis · Mathematics 2021-03-18 Jinxun Wang , Tao Qian

We construct the Continuous Wavelet Transform (CWT) on the homogeneous space (Cartan domain) D_4=SO(4,2)/(SO(4)\times SO(2)) of the conformal group SO(4,2) (locally isomorphic to SU(2,2)) in 1+3 dimensions. The manifold D_4 can be mapped…

Mathematical Physics · Physics 2011-06-21 M. Calixto , E. Perez-Romero

We consider the conformal group of the unit sphere $S^{n-1},$ the so-called proper Lorentz group Spin$^+(1,n),$ for the study of spherical continuous wavelet transforms (CWT). Our approach is based on the method for construction of general…

Representation Theory · Mathematics 2013-08-08 Milton Ferreira

Associated with a symmetric Clifford system $\{P_0, P_1,\cdots, P_{m}\}$ on $\mathbb{R}^{2l}$, there is a canonical vector bundle $\eta$ over $S^{l-1}$. For $m=4$ and $8$, we construct explicitly its characteristic map, and determine…

Differential Geometry · Mathematics 2022-08-24 Chao Qian , Zizhou Tang , Wenjiao Yan

Let $(M,F)$ be a connected Finsler space and $d$ the distance function of $(M,F)$. A Clifford translation is an isometry $\rho$ of $(M,F)$ of constant displacement, in other words such that $d(x,\rho(x))$ is a constant function on $M$. In…

Differential Geometry · Mathematics 2012-06-19 Shaoqiang Deng , Joseph A. Wolf

The Standard Model of particle physics is derived from first principles from the free Dirac Lagrangian in 8-dimensional spacetime. Motivated by second quantization arguments, we embed the 4-dimensional Clifford algebra of the Dirac…

High Energy Physics - Phenomenology · Physics 2026-05-18 Gonçalo M. Quinta

In the framework of Clifford analysis, a chain of harmonic and monogenic potentials is constructed in the upper half of Euclidean space $\mR^{m+1}$, including a higher dimensional generalization of the complex logarithmic function. Their…

Classical Analysis and ODEs · Mathematics 2012-10-09 Fred Brackx , Hendrik De Bie , Hennie De Schepper

We use Clifford algebras to construct a unified formalism for studying constant extrinsic curvature immersed surfaces in riemannian and semi-riemannian $3$-manifolds in terms of immersed bilegendrian surfaces in their unitary bundles. As an…

Differential Geometry · Mathematics 2023-08-15 Graham Smith

The study of complex functions is based around the study of holomorphic functions, satisfying the Cauchy-Riemann equations. The relatively recent field of Clifford Analysis lets us extend many results from Complex Analysis to higher…

Mathematical Physics · Physics 2025-01-15 Calum Robson

As is the case for the theory of holomorphic functions in the complex plane, the Cauchy Integral Formula has proven to be a corner stone of Clifford analysis, the monogenic function theory in higher dimensional euclidean space. In recent…

Complex Variables · Mathematics 2019-11-26 Fred Brackx , Hennie De Schepper , Roman Lavicka , Vladimir Soucek

We introduce the Umbral calculus into Clifford analysis starting from the abstract of the Heisenberg commutation relation $[\frac{d}{dx}, x] = {\bf id}$. The Umbral Clifford analysis provides an effective framework in continuity and…

Classical Analysis and ODEs · Mathematics 2011-03-02 Guangbin Ren , Nelson Faustino

Using representations of Clifford algebras we construct indecomposable singular Riemannian foliations on round spheres, most of which are non-homogeneous. This generalizes the construction of non-homogeneous isoparametric hypersurfaces due…

Differential Geometry · Mathematics 2014-07-08 Marco Radeschi

Several Clifford algebras that are covariant under the action of a Lie algebra $g$ can be deformed in a way consistent with the deformation of $Ug$ into a quantum group (or into a triangular Hopf algebra) $U_qg$, i.e. so as to remain…

Quantum Algebra · Mathematics 2007-05-23 Gaetano Fiore

The paper is devoted to the variational analysis of the Willmore, and other L^2 curvature functionals, among immersions of 2-dimensional surfaces into a compact riemannian m-manifold (M^m,h) with m>2. The goal of the paper is twofold, on…

Analysis of PDEs · Mathematics 2020-02-12 Andrea Mondino , Tristan Rivière
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