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Related papers: Weakly complete domains in Grauert type surfaces

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In this paper, we consider linear elliptic systems from composite materials where the coefficients depend on the shape and might have the discontinuity between the subregions. We derive a function which is related to the gradient of the…

Analysis of PDEs · Mathematics 2022-06-17 Youchan Kim , Pilsoo Shin

Proposing a certain category of bialgebroid maps we show that the balanced depth 2 extensions appear as they were the finitary Galois extensions in the context of quantum groupoid actions, i.e., actions by finite bialgebroids, weak…

Quantum Algebra · Mathematics 2007-05-23 K. Szlachanyi

We study the geometry of $m$-regular domains within the Caffarelli-Nirenberg-Spruck model in terms of barrier functions, envelopes, exhaustion functions, and Jensen measures. We prove among other things that every $m$-hyperconvex domain…

Complex Variables · Mathematics 2018-08-30 Per Ahag , Rafal Czyz , Lisa Hed

We study the p-fine topology on complete metric spaces equipped with a doubling measure supporting a p-Poincare inequality, 1 < p< oo. We establish a weak Cartan property, which yields characterizations of the p-thinness and the p-fine…

Analysis of PDEs · Mathematics 2020-06-05 Anders Björn , Jana Björn , Visa Latvala

We consider the class of all conformal mappings from a compact Riemann surface into the threedimensional or fourdimensional Euclidean space. A sequence in this class with bounded Willmore functional is shown to have a sequence of conformal…

Differential Geometry · Mathematics 2007-05-23 Martin Ulrich Schmidt

We study the set of irregular points for topologically mixing subshifts of finite type. It is well known that despite the irregular set having zero measure for every invariant measure, it has full topological entropy and full Hausdorff…

Dynamical Systems · Mathematics 2025-03-14 Sebastian Burgos

We study the existence of topologically closed complex curves normalized by bordered Riemann surfaces in complex spaces. Our main result is that such curves abound in any noncompact complex space admitting an exhaustion function whose Levi…

Complex Variables · Mathematics 2007-08-16 Barbara Drinovec-Drnovsek , Franc Forstneric

In this paper we take a look at compactly generated weak Hausdorff spaces equipped with an action of a compact Lie group $G$ together with their colimits and homotopy colimits. In particular, we investigate relations between (homotopy)…

Algebraic Topology · Mathematics 2025-08-27 Aleksandar Miladinović

We describe all connected components of the space of hyperbolic Gorenstein quasi-homogeneous surface singularities. We prove that any connected component is homeomorphic to a quotient of R^d by a discrete group.

Algebraic Geometry · Mathematics 2015-05-20 Sergey Natanzon , Anna Pratoussevitch

In this paper we consider refined geometric characterizations of weak $p$-quasiconformal mappings $\varphi:\Omega\to\widetilde{\Omega}$, where $\Omega$ and $\widetilde{\Omega}$ are domains in $\mathbb R^n$. We prove that mappings with the…

Analysis of PDEs · Mathematics 2024-03-06 Ruslan Salimov , Alexander Ukhlov

We investigate if an existing notion of weak sequential convergence in a Hadamard space can be induced by a topology. We provide an answer on what we call weakly proper Hadamard spaces. A notion of dual space is proposed and it is shown…

Functional Analysis · Mathematics 2025-03-11 Arian Bërdëllima

We elucidate the geometric background of function-theoretic properties for the Gauss maps of several classes of immersed surfaces in three-dimensional space forms, for example, minimal surfaces in Euclidean three-space, improper affine…

Differential Geometry · Mathematics 2014-05-29 Yu Kawakami

In this paper we consider Gorenstein stable surfaces with $K^2_X=1$ and positive geometric genus. Extending classical results, we show that such surfaces admit a simple description as weighted complete intersection. We exhibit a wealth of…

Algebraic Geometry · Mathematics 2015-11-11 Marco Franciosi , Rita Pardini , Sönke Rollenske

We construct a category that classifies compact Hausdorff spaces by their shape and finite topological spaces by their weak homotopy type.

Category Theory · Mathematics 2021-10-07 Pedro J. Chocano , Manuel A. Morón , Francisco R. Ruiz del Portal

Every holomorphic effective parabolic or reductive geometry on a domain over a Stein manifold extends uniquely to the envelope of holomorphy of the domain. This result completes the open problems of my earlier paper on extension of…

Differential Geometry · Mathematics 2019-11-12 Benjamin McKay

We study the space of Hopf differentials of almost fuchsian minimal immersions of compact Riemann surfaces. We show that the extrinsic curvature of the immersion at any given point is a concave function of the Hopf differential. As a…

Differential Geometry · Mathematics 2023-05-16 Samuel Bronstein , Graham Andrew Smith

We study exotic smoothings of open 4-manifolds using the minimal genus function and its analog for end homology. While traditional techniques in open 4-manifold smoothing theory give no control of minimal genera, we make progress by using…

Geometric Topology · Mathematics 2017-03-14 Robert E. Gompf

The construction of manifold structures and fundamental classes on the (compactified) moduli spaces appearing in Gromov-Witten theory is a long-standing problem. Up until recently, most successful approaches involved the imposition of…

Symplectic Geometry · Mathematics 2014-05-27 Andreas Gerstenberger

Given a domain Y in a complex manifold X, it is a difficult problem with no general solution to determine whether Y has a schlicht envelope of holomorphy in X, and if it does, to describe the envelope. The purpose of this paper is to tackle…

Complex Variables · Mathematics 2008-08-08 Finnur Larusson , Rasul Shafikov

Circular domains frequently appear in the fields of ecology, biology and chemistry. In this paper, we investigate the equivariant Hopf bifurcation of partial functional differential equations with Neumann boundary condition on a…

Dynamical Systems · Mathematics 2023-05-11 Yaqi Chen , Xianyi Zeng , Ben Niu