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The main result of this paper is some "annulus" formula for the relative extremal function in the context of Stein spaces (Theorem 1.1). Our result may be useful in the theory of the extension of separately holomorphic functions on…

Complex Variables · Mathematics 2012-04-18 Arkadiusz Lewandowski

We prove the logarithmic extension theorem for one-forms on strongly $F$-regular singularities. Additionally, we establish the logarithmic extension theorem for one-forms on three-dimensional klt singularities in characteristic $p>41$. To…

Algebraic Geometry · Mathematics 2026-04-07 Tatsuro Kawakami , Kenta Sato

Let M be a compact, connected, C^2-smooth and globally minimal hypersurface M in P_2(C) which divides the projective space into two connected parts U^{+} and U^{-}. We prove that there exists a side, U^- or U^+, such that every continuous…

Complex Variables · Mathematics 2009-09-29 Roman Dwilewicz , Joel Merker

We treat two quite different problems related to changes of complex structures on K\"ahler manifolds by using global geometric method. First, by using operators from Hodge theory on compact K\"ahler manifold, we present a closed explicit…

Algebraic Geometry · Mathematics 2018-03-06 Kefeng Liu , Shengmao Zhu

Formal expressions are derived for the multipole expansion of the structure functions of a general polarization observable of exclusive electrodisintegration of the deuteron using a longitudinally polarized beam and/or an oriented target.…

Nuclear Theory · Physics 2007-05-23 Hartmuth Arenhoevel , Winfried Leidemann , Edward L. Tomusiak

A theory of holomorphic extension of eigenfunctions on homogeneous harmonic spaces is developed.

Representation Theory · Mathematics 2017-11-27 Roberto Camporesi , Bernhard Krötz

We prove an analog of the classical Hartogs extension theorem for certain (possibly unbounded) domains on coverings of Stein manifolds.

Complex Variables · Mathematics 2007-05-23 Alexander Brudnyi

We survey the extensions of a group by a group using crossed products instead of exact sequences of groups. The approach has various advantages, one of them being that the crossed product is an universal object. Several new applications are…

Group Theory · Mathematics 2014-03-18 A. L. Agore , G. Militaru

This work addresses the existence of transitive extensions of certain infinite permutation groups which arise as the automorphism groups of model-theoretic structures which are generic in the Fra\"iss\'e sense. The study of transitive…

Logic · Mathematics 2026-04-15 Felipe Estrada

In this paper we give simple extension and uniqueness theorems for restricted additive and logarithmic functional equations.

Analysis of PDEs · Mathematics 2023-06-22 Tamás Glavosits , Zsolt Karácsony

We give positive answer to a conjecture by Agranovsky. A continuous function on the sphere which has separate holomorphic extension along the set of complex lines passing through three non aligned interior points, is the trace of a…

Complex Variables · Mathematics 2011-01-04 L. Baracco

A generalization of the Hartogs theorem is proved for a class of Tubes structures. We assume that the intervening commutative Lie algebra admits at least a number of globally solvable generators greater or equal to the structure…

Complex Variables · Mathematics 2014-02-04 Joaquim Tavares

We study the asymptotic behaviour of convolution-type functionals defined on general periodic domains by proving an extension theorem

Analysis of PDEs · Mathematics 2020-07-10 Andrea Braides , Valeria Chiadò Piat , Lorenza D'Elia

Let $k$ be a field of characteristic zero. By using Hironaka's desingularisation theorem, we prove an extension criterion for a functor defined on nonsingular k-schemes and taking values on a category of complexes. Roughly speaking, the…

alg-geom · Mathematics 2008-02-03 F. Guillén , V. Navarro Aznar

The main purpose of this article is to present a generalization of Forelli's theorem for the functions holomorphic along a general pencil of holomorphic discs. This generalizes the main result of \cite{JKS13} and the original Forelli's…

Complex Variables · Mathematics 2020-10-27 Ye-Won Luke Cho , Kang-Tae Kim

A general theory of inhomogeneous broadening is rarely applied to nonlinear spectroscopy in lieu of either a simple Lorentzian or Gaussian model. In this work, we generalize all the important third-order nonlinear susceptibility expressions…

Optics · Physics 2008-02-26 Robert J. Kruhlak , Mark G. Kuzyk

We study the existence of formal Taylor expansions for functions defined on fields of generalised series. We prove a general result for the existence and convergence of those expansions for fields equipped with a derivation and an…

Logic · Mathematics 2025-09-11 Vincent Bagayoko , Vincenzo Mantova

We prove a general duality theorem for tangle-like dense objects in combinatorial structures such as graphs and matroids. This paper continues, and assumes familiarity with, the theory developed in [6]

Combinatorics · Mathematics 2014-06-17 Reinhard Diestel , Sang-il Oum

We extend the theory of separately holomorphic mappings between complex analytic spaces. Our method is based on Poletsky theory of discs, Rosay Theorem on holomorphic discs and our recent joint-work with Pflug on cross theorems in dimension…

Complex Variables · Mathematics 2007-11-05 Viet-Anh Nguyen

We study ellipticity properties of complements of compact subsets of Stein manifolds.

Complex Variables · Mathematics 2014-10-10 Rafael B. Andrist , Nikolay Shcherbina , Erlend F. Wold