English
Related papers

Related papers: Shared matings in $V_2$

200 papers

By analogy with Weinstein's neighbourhood theorem, we prove a uniqueness result for symplectic neighbourhoods of a large family of stratified subspaces. This result generalizes existing constructions, e.g., in the search for exotic…

Symplectic Geometry · Mathematics 2026-01-21 Yael Karshon , Sara B. Tukachinsky , Yoav Zimhony

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

The main objects under consideration in this thesis are called maps, a certain class of graphs embedded on surfaces. Our problems have a powerful relatively recent tool in common, the so-called topological recursion (TR) introduced by…

Mathematical Physics · Physics 2020-02-04 Elba Garcia-Failde

The classical cycle class map for a smooth complex variety sends cycles in the Chow ring to cycles in the singular cohomology ring. We study two cycle class maps for smooth real varieties: the map from the I-cohomology ring to singular…

Algebraic Geometry · Mathematics 2021-08-25 Jens Hornbostel , Matthias Wendt , Heng Xie , Marcus Zibrowius

A linear mapping upon real n-dimensional space, where the dimension n is odd, has a real eigenvalue-eigenvector pair. The corresponding statement for complex vector spaces holds true for any dimension n, but should be easy to demonstrate…

Functional Analysis · Mathematics 2015-09-22 Jon A. Sjogren

We prove that any $C^{1+BV}$ degree $d \geq 2$ circle covering $h$ having all periodic orbits weakly expanding, is conjugate in the same smoothness class to a metrically expanding map. We use this to connect the space of parabolic external…

Dynamical Systems · Mathematics 2017-11-17 Luna Lomonaco , Carsten Petersen , Weixiao Shen

This paper provides the constructive loop vertex expansion for stable matrix models with (single trace) interactions of arbitrarily high even order in the Hermitian and real symmetric cases. It relies on a new and simpler method which can…

Mathematical Physics · Physics 2019-10-30 Thomas Krajewski , Vincent Rivasseau , Vasily Sazonov

Compactification of 6d N=(2,0) theory of type G on a punctured Riemann surface has been effectively used to understand S-dualities of 4d N=2 theories. We can further introduce branch cuts on the Riemann surface across which the worldvolume…

High Energy Physics - Theory · Physics 2011-06-21 Yuji Tachikawa

Building on the work of the fourth author in math.AG/9904074, we prove the weak factorization conjecture for birational maps in characteristic zero: a birational map between complete nonsingular varieties over an algebraically closed field…

Algebraic Geometry · Mathematics 2007-05-23 Dan Abramovich , Kalle Karu , Kenji Matsuki , Jarosław Włodarczyk

This paper studies intersection theory on the compactified moduli space M(n,d) of holomorphic bundles of rank n and degree d over a fixed compact Riemann surface of genus g > 1 where n and d may have common factors. Because of the presence…

Algebraic Geometry · Mathematics 2007-05-23 Lisa C. Jeffrey , Young-Hoon Kiem , Frances C. Kirwan , Jonathan Woolf

We obtain a complete description of collections of n conjugacy classes in SU(2) with the property that the multiplication map from the product of these n conjugacy classes to SU(2) is surjective. The basic instrument is a characterization…

Group Theory · Mathematics 2007-05-23 Lisa C. Jeffrey , Augustin-Liviu Mare

We combine some known results and techniques with new ones to show that there exists a non-algebraic, multi-linear matroid. This answers an open question by Matus (Discrete Mathematics 1999), and an open question by Pendavingh and van Zwam…

Combinatorics · Mathematics 2016-07-01 Aner Ben-Efraim

We construct an explicit bijection between bipartite pointed maps of an arbitrary surface $\mathbb{S}$, and specific unicellular blossoming maps of the same surface. Our bijection gives access to the degrees of all the faces, and distances…

Combinatorics · Mathematics 2022-08-02 Maciej Dołęga , Mathias Lepoutre

Using the existence of certain symplectic submanifolds in symplectic 4-manifolds, we prove an estimate from above for the number of singular fibers with separating vanishing cycles in minimal Lefschetz fibrations over surfaces of positive…

Geometric Topology · Mathematics 2010-05-18 H. Endo , D. Kotschick

First we survey generating function methods for obtaining useful probability estimates about random matrices in the finite classical groups. Then we describe a probabilistic picture of conjugacy classes which is coherent and beautiful.…

Group Theory · Mathematics 2007-05-23 Jason Fulman

The circle method has been successfully used over the last century to study rational points on hypersurfaces. More recently, a version of the method over function fields, combined with spreading out techniques, has led to a range of results…

Algebraic Geometry · Mathematics 2025-05-05 Margaret Bilu , Tim Browning

We define analytic maps between super Riemann surfaces which extend the notion of branched covering maps to a supersymmetric setting. We show that these super covering maps appear naturally both in symmetric product orbifolds of…

High Energy Physics - Theory · Physics 2026-02-06 Beat Nairz

With the help of hyper-ideal circle pattern theory, we have developed a discrete version of the classical uniformization theorems for surfaces represented as finite branched covers over the Riemann sphere as well as compact polyhedral…

Metric Geometry · Mathematics 2017-08-25 Alexander Bobenko , Nikolay Dimitrov , Stefan Sechelmann

Strong light-matter coupling provides a versatile and novel means to manipulate chemical processes. Here we develop a theoretical framework to investigate the spectroscopy and dynamics of a molecular ensemble embedded in an optical cavity…

Quantum Physics · Physics 2023-06-16 Bing Gu

Special generic maps are smooth maps between smooth manifolds with only definite fold points as their singularities. The problem of whether a closed $n$-manifold admits a special generic map into Euclidean $p$-space for $1 \leq p \leq n$…

Geometric Topology · Mathematics 2020-09-15 Dominik Wrazidlo