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We study the compactness problem for moduli spaces of holomorphic supercurves which, being motivated by supergeometry, are perturbed such as to allow for transversality. We give an explicit construction of limiting objects for sequences of…

Symplectic Geometry · Mathematics 2015-02-24 Josua Groeger

This article deals with the multiple values and algebraic dependences problem of meromorphic mappings sharing moving hyperplanes in projective space. We give some algebraic dependences theorems for meromorphic mappings sharing moving…

Complex Variables · Mathematics 2016-02-02 Le Ngoc Quynh

Let $R=C[[t]]$ be the ring of power series over an algebraically closed field $C$ of characteristic zero. We show that each connection on a finite flat $R((x))$-module is the sum of a regular singular connection and a diagonalizable…

Algebraic Geometry · Mathematics 2024-04-16 Pham Thanh Tâm

This paper is part of a program to understand the parameter spaces of dynamical systems generated by meromorphic functions with finitely many singular values. We give a full description of the parameter space for a specific family based on…

Complex Variables · Mathematics 2022-01-24 Tao Chen , Yunping Jiang , Linda Keen

The modular class of a regular foliation is a cohomological obstruction to the existence of a volume form transverse to the leaves which is invariant under the flow of the vector fields of the foliation. By drawing on the relationship…

Differential Geometry · Mathematics 2024-06-24 Sylvain Lavau

Collective behavior is studied in globally coupled maps. Several coherent motions exist, even in fully desynchronized state. To characterize the collective behavior, we introduce scaling transformation of parameter, and detect the…

chao-dyn · Physics 2009-10-31 Tatsuo Shibata , Kunihiko Kaneko

Let $C$ be an irreducible projective plane curve in the complex projective space ${\mathbb{P}}^2$. The classification of such curves, up to the action of the automorphism group $PGL(3,{\mathbb{C}})$ on ${\mathbb{P}}^2$, is a very difficult…

Algebraic Geometry · Mathematics 2007-05-23 J. Fernandez de Bobadilla , I. Luengo , A. Melle-Hernandez , A. Nemethi

We prove local connectivity of the boundaries of invariant simply connected attracting basins for a class of transcendental meromorphic maps. The maps within this class need not be geometrically finite or in class $\mathcal B$, and the…

Dynamical Systems · Mathematics 2024-06-14 Krzystof Barański , Núria Fagella , Xavier Jarque , Bogusława Karpińska

For some class of mappings, there are investigated problems connected with a possibility of continuous extension to a boundary on Riemannian manifolds. In particular, for so-called ring mappings, there is proved a result related to…

Complex Variables · Mathematics 2015-12-16 D. P. Ilyutko , E. A. Sevost'yanov

We develop the notions of connections and curvature for general Lie-Rinehart algebras without using smoothness assumptions on the base space. We present situations when a connection exists. E.g., this is the case when the underlying module…

Differential Geometry · Mathematics 2024-11-28 Hans-Christian Herbig , William Osnayder Clavijo Esquivel

We consider a class of singularly perturbed elliptic problems with nonautonomous asymptotically linear nonlinearities. The dependence on the spatial coordinates comes from the presence of a potential and of a function representing a…

Analysis of PDEs · Mathematics 2014-05-29 Liliane Maia , Eugenio Montefusco , Benedetta Pellacci

We study the holomorphic symplectic geometry of (the smooth locus of) the space of holomorphic sections of a twistor space with rotating circle action. The twistor space carries a line bundle with meromorphic connection constructed by…

Differential Geometry · Mathematics 2026-02-04 Florian Beck , Indranil Biswas , Sebastian Heller , Markus Röser

The concept of concrete regularity structure gives the algebraic backbone of the operations involved in the local expansions used in the regularity structure approach to singular stochastic partial differential equations. The spaces and the…

Probability · Mathematics 2024-12-18 I. Bailleul , N. Moench

We present necessary conditions for monotonicity, in one form or another, of fixed point iterations of mappings that violate the usual nonexpansive property. We show that most reasonable notions of linear-type monotonicity of fixed point…

Optimization and Control · Mathematics 2020-03-26 D. Russell Luke , Marc Teboulle , Nguyen H. Thao

We study some functorial properties of certain sheaves of meromorphic forms on reduced complex space; particulary, the meromorphic forms which extend holomorphicaly on any desingularisation. The purpose concern their behavior under pull…

Algebraic Geometry · Mathematics 2025-02-25 Kaddar Mohamed

First we give a complex ball uniformization of the moduli space of 8 ordered points on the projective line by using the theory of periods of K3 surfaces. Next we give a projective model of this moduli space by using automorphic forms on a…

Algebraic Geometry · Mathematics 2007-05-23 Shigeyuki Kondo

In this note we first study regular $\mathbb{Z}$-graded local rings. We characterize commutative noetherian regular $\mathbb{Z}$-graded local rings in similar ways as in the usual local case. Then, we characterize graded isolated…

Commutative Algebra · Mathematics 2025-08-11 Haonan Li , Quanshui Wu

This paper aims to undertake an exploration of the behavior of the moduli space of line arrangements while establishing its combinatorial interplay with the incidence structure of the arrangement. In the first part, we investigate…

Algebraic Geometry · Mathematics 2024-02-26 Benoît Guerville-Ballé , Juan Viu-Sos

We consider flat surfaces and the points of their metric completions, particularly the singularities to which the flat structure of the surface does not extend. The local behavior near a singular point x can be partially described by a…

Geometric Topology · Mathematics 2011-10-07 Joshua P. Bowman , Ferrán Valdez

In this paper we prove the connectedness of isoperiodic moduli spaces of meromorphic differentials with at least three simple poles on homologically marked smooth curves whose periods are either not contained in a real line, or not…

Algebraic Geometry · Mathematics 2025-08-04 Liza Arzhakova , Gabriel Calsamiglia , Bertrand Deroin