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Related papers: Monogenic Functions in Conformal Geometry

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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

Let $d \geq 2$. We consider the symmetric monoidal category of oriented Riemannian $d$-manifolds with conformal open embeddings. The prefactorization algebra associated with the conformal Laplacian defines a symmetric monoidal functor from…

Mathematical Physics · Physics 2026-04-14 Yuto Moriwaki

We introduce a functional that couples the nonlinear sigma model with a spinor field: $L=\int_M[|d\phi|^2+(\psi,\D\psi)]$. In two dimensions, it is conformally invariant. The critical points of this functional are called Dirac-harmonic…

Differential Geometry · Mathematics 2007-05-23 Qun Chen , Juergen Jost , Jiayu Li , Guofang Wang

These notes are concerned with harmonic and holomorphic functions on Euclidean spaces, using quaternions and Clifford algebras in higher dimensions. The main themes are weak solutions, the mean-value property, and subharmonicity.

Classical Analysis and ODEs · Mathematics 2007-05-23 Stephen Semmes

We derive a class of variational functionals which arise naturally in conformal geometry. In the special case when the Riemannian manifold is locally conformal flat, the functional coincides with the well studied functional which is the…

Differential Geometry · Mathematics 2008-03-05 Sun-Yung Alice Chang , Hao Fang

The concept of generalized partial-slice monogenic functions has been recently introduced to include the two theories of monogenic functions and of slice monogenic functions over Clifford algebras. The main purpose of this article is to…

Complex Variables · Mathematics 2025-12-29 Zhenghua Xu , Irene Sabadini

In a recent paper [Trans. Amer. Math. Soc. 378 (2025), 851-883], the concept of generalized partial-slice monogenic (or regular) function was introduced over Clifford algebras. The present paper shall extend the study of generalized…

Complex Variables · Mathematics 2026-05-19 Zhenghua Xu , Irene Sabadini

The spectral theory on the $S$-spectrum originated to give quaternionic quantum mechanics a precise mathematical foundation and as a spectral theory for linear operators in vector analysis. This theory has proven to be significantly more…

Functional Analysis · Mathematics 2025-01-27 Fabrizio Colombo , Antonino De Martino , Stefano Pinton

Riemannian Geometry, Topology and Dynamics permit to introduce partially defined holomorphic functions on the variety of representations of the fundamental group of a manifold. The functions we consider are the complex valued Ray-Singer…

Differential Geometry · Mathematics 2007-05-23 Dan Burghelea , Stefan Haller

We define a very general notion of regularity for functions taking values in an alternative real $*$-algebra. Over Clifford numbers, this notion subsumes the well-established notions of monogenic function and slice-monogenic function. Over…

Complex Variables · Mathematics 2024-06-10 Riccardo Ghiloni , Caterina Stoppato

Let $\mathbb{A}_n^m$ be an arbitrary $n$-dimensional commutative associative algebra over the field of complex numbers with $m$ idempotents. Let $e_1=1,e_2,e_3$ be elements of $\mathbb{A}_n^m$ which are linearly independent over the field…

Commutative Algebra · Mathematics 2014-11-18 Vitalii Shpakivskyi

Among all two-dimensional commutative algebras of the second rank a totally of all their biharmonic bases $\{e_1,e_2\}$, satisfying conditions $\left(e_1^2+ e_2^2\right)^{2} = 0$, $e_1^2 + e_2^2 \ne 0$, is found in an explicit form. A set…

Analysis of PDEs · Mathematics 2020-01-30 S. V. Gryshchuk

We do further investigation in a certain cosine function defined for smooth Minkowski spaces. We prove that such function is symmetric if and only if the referred space is Euclidean, and also that it can be given in terms of the Gateaux…

Differential Geometry · Mathematics 2017-02-07 Vitor Balestro , Emad Shonoda

We study a functional, whose critical points couple Dirac-harmonic maps from surfaces with a two form. The critical points can be interpreted as coupling the prescribed mean curvature equation to spinor fields. On the other hand, this…

Differential Geometry · Mathematics 2015-10-15 Volker Branding

In the present paper, new classes of wavelet functions are presented in the framework of Clifford analysis. Firstly, some classes of orthogonal polynomials are provided based on 2-parameters weight functions. Such classes englobe the well…

Classical Analysis and ODEs · Mathematics 2017-04-13 Sabrine Arfaoui , Anouar Ben Mabrouk

A correspondence between a monogenic function in an arbitrary finite-dimensional commutative associative algebra and a finite set of monogenic functions in a special commutative associative algebra is established.

Commutative Algebra · Mathematics 2018-03-13 Vitalii Shpakivskyi

For a function defined on an arbitrary subset of a Riemann surface, we give conditions which allow the function to be extended conformally. One folkloric consequence is that two common definitions of an analytic arc in ${\mathbb C}$ are…

Complex Variables · Mathematics 2014-06-16 P. M. Gauthier , V. Nestoridis

We introduce mollifiers in Clifford analysis setting and construct a sequence of $\C^{\infinity}$-functions that approximate a $\gamma$-regular function and a solution to a non homogeneous BVP of an in homogeneous Dirac like operator in…

Analysis of PDEs · Mathematics 2008-04-21 Dejenie A. Lakew

We revise a monogenic calculus for several non-commuting operators, which is defined through group representations. Instead of an algebraic homomorphism we use group covariance. The related notion of joint spectrum and spectral mapping…

Functional Analysis · Mathematics 2007-05-23 Vladimir V. Kisil

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