English
Related papers

Related papers: Complex and Quaternionic Cauchy formulas in Koch s…

200 papers

We give a generalization of the Beurling-Lax theorem both in the complex and quaternionic settings. We consider in the first case functions meromorphic in the right complex half-plane, and functions slice hypermeromorphic in the right…

Functional Analysis · Mathematics 2015-09-22 Daniel Alpay , Irene Sabadini

The Cauchy integral formula in Clifford analysis allows us to associate a holomorphic function $\tilde f:L_n\to \C$ on the Lie ball $L_n$ in $\C^n$ with its monogenic counterpart $f:B_1(0)\to \C^{n+1}$ via the formula $\tilde f(z) =…

Complex Variables · Mathematics 2023-03-14 Brian Jefferies

The k-dimensional Dehn (or isoperimetric) function of a group bounds the volume of efficient ball-fillings of k-spheres mapped into k-connected spaces on which the group acts properly and cocompactly; the bound is given as a function of the…

Group Theory · Mathematics 2014-11-11 Noel Brady , Martin Bridson , Max Forester , Krishnan Shankar

We announce a scale of Blaschke-type conditions for subsequences of zeros of holomorphic functions on arbitrary domains in the extended complex plane.

Complex Variables · Mathematics 2015-05-22 Bulat Khabibullin , Nargiza Tamindarova

We give an orbifold Riemann-Roch formula in closed form for the Hilbert series of a quasismooth polarized n-fold X,D, under the assumption that X is projectively Gorenstein with only isolated orbifold points. Our formula is a sum of parts…

Algebraic Geometry · Mathematics 2015-06-11 Anita Buckley , Miles Reid , Shengtian Zhou

Inspired from the Cholewinski approach see [5], we investigate a family of Fock spaces in the quaternionic slice hyperholomorphic setting as well as some associated quaternionic linear operators. In a particular case, we reobtain the slice…

Complex Variables · Mathematics 2019-05-01 Kamal Diki

The aim of this paper is to give an overview of the spectral theories associated with the notions of holomorphicity in dimension greater than one. A first natural extension is the theory of several complex variables whose Cauchy formula is…

Spectral Theory · Mathematics 2020-11-24 Fabrizio Colombo , Jonathan Gantner , Stefano Pinton

We prove some extension theorems for quaternionic holomorphic functions in the sense of Fueter. Starting from the existence theorem for the nonhomogeneous Cauchy-Riemann-Fueter Problem, we prove that an $\mathbb{H}$-valued function $f$ on a…

Complex Variables · Mathematics 2020-02-27 Marco Maggesi , Donato Pertici , Giuseppe Tomassini

The main aim of this paper is to study multidimensional Bohr radii for holomorphic functions defined in complete Reinhardt domains in $\mathbb{C}^n$ with values in complex Banach spaces. More specifically, for holomorphic functions with…

Complex Variables · Mathematics 2026-04-14 Vasudevarao Allu , Himadri Halder , Subhadip Pal

Using holographic methods we investigate the behaviour of fermionic spectral functions of strongly coupled 2+1 dimensional field theories as both temperature and chemical potential are quenched.

High Energy Physics - Theory · Physics 2014-11-05 N. Callebaut , B. Craps , F. Galli , D. C. Thompson , J. Vanhoof , J. Zaanen , Hongbao Zhang

This treatise investigates holomorphic functions defined on the space of bicomplex numbers introduced by Segre. The theory of these functions is associated with Fueter's theory of regular, quaternionic functions. The algebras of quaternions…

Complex Variables · Mathematics 2007-05-23 Stefan Rönn

Let G be a connected, real, semisimple Lie group contained in its complexification G_C, and let K be a maximal compact subgroup of G. We construct a K_C-G double coset domain in G_C, and we show that the action of G on the K-finite vectors…

Representation Theory · Mathematics 2007-05-23 Bernhard Kroetz , Robert J. Stanton

We provide a new constructive method for obtaining explicit remainder estimates of eigenvalue counting functions of Neumann Laplacians on domains with fractal boundary. This is done by establishing estimates for first non-trivial…

Spectral Theory · Mathematics 2023-12-20 Sabrina Kombrink , Lucas Schmidt

The classical Blasius--Chaplygin formula provides an elegant method for calculating the lift force on a two-dimensional body in steady, irrotational flow. The key ingredient is the definition of a complex-valued potential function…

Complex Variables · Mathematics 2025-08-06 Dmitrii Legatiuk , Heikki Orelma

A new version of the Hadwiger theorem on convex functions is established and an explicit representation of functional intrinsic volumes is found using new functional Cauchy-Kubota formulas. In addition, connections between functional…

Functional Analysis · Mathematics 2025-07-28 Andrea Colesanti , Monika Ludwig , Fabian Mussnig

We investigate differentiability of functions defined on regions of the real quaternion field and obtain a noncommutative version of the Cauchy-Riemann conditions. Then we study the noncommutative analog of the Cauchy integral as well as…

Complex Variables · Mathematics 2007-05-23 S. V. Ludkovsky , F. van Oystaeyen

We develop quaternionic analysis using as a guiding principle representation theory of various real forms of the conformal group. We first review the Cauchy-Fueter and Poisson formulas and explain their representation theoretic meaning. The…

Representation Theory · Mathematics 2011-07-25 Igor Frenkel , Matvei Libine

Based on the full similarity in algebraic properties and differentiation rules between quaternionic (H-) holomorphic and complex (C-) holomorphic functions, we assume that there exists one holistic notion of a holomorphic function that has…

Complex Variables · Mathematics 2024-08-01 Michael Parfenov

Let $M$ be a complex manifold of complex dimension $n+k$. We say that the functions $u_1,...s,u_k$ and the vector fields $\xi_1,...,\xi_k$ on $M$ form a \emph{complex gradient system} if $\xi_1,...,\xi_k,J\xi_1,...,J\xi_k$ are linearly…

Complex Variables · Mathematics 2011-06-29 Giuseppe Tomassini , Sergio Venturini

We consider a class of partial differential equations with Carlitz derivatives over a local field of positive characteristic, for which an analog of the Cauchy problem is well-posed. Equations of such type correspond to quasi-holonomic…

Number Theory · Mathematics 2007-06-07 Anatoly N. Kochubei