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Related papers: A topological framework for signed permutations

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For area-preserving H\'enon-like maps and their compositions, we consider smooth perturbations that keep the reversibility of the initial maps but destroy their conservativity. For constructing such perturbations, we use two methods, the…

Dynamical Systems · Mathematics 2020-06-05 M. S. Gonchenko , S. V. Gonchenko , K. Safonov

If a non-reversible Finsler norm is the sum of a reversible Finsler norm and a closed 1-form, then one can uniquely recover the 1-form up to potential fields from the boundary distance data. We also show a boundary rigidity result for…

Differential Geometry · Mathematics 2021-03-26 Keijo Mönkkönen

The inverse design of metamaterial architectures presents a significant challenge, particularly for nonlinear mechanical properties involving large deformations, buckling, contact, and plasticity. Traditional methods, such as gradient-based…

Computational Physics · Physics 2025-05-29 Qibang Liu , Seid Koric , Diab Abueidda , Hadi Meidani , Philippe Geubelle

The more important difference between Riemann and pseudo-Riemann manifolds is the metric signature and its theoretical consequences. The practical application for Physics Theories becomes often impossible due to the signature consequences.…

Mathematical Physics · Physics 2020-01-20 Juan Mendez

This paper is part of a series of articles on noncommutative geometry and conformal geometry. In this paper, we reformulate the local index formula in conformal geometry in such a way to take into account of the action of conformal…

Differential Geometry · Mathematics 2019-02-12 Raphael Ponge , Hang Wang

We provide a simple and natural solution to the problem of generating all $2^n \cdot n!$ signed permutations of $[n] = \{1,2,\ldots,n\}$. Our solution provides a pleasing generalization of the most famous ordering of permutations: plain…

Data Structures and Algorithms · Computer Science 2024-06-17 Yuan , Qiu , Aaron Williams

The Feynman rules assign to every graph an integral which can be written as a function of a scaling parameter L. Assuming L for the process under consideration is very small, so that contributions to the renormalizaton group are small, we…

High Energy Physics - Theory · Physics 2016-09-21 Julian Purkart

We perform a comprehensive study of a certain class of discrete symmetries of families of Feynman integrals, defined as affine changes of variables that map different sectors of the family into each other. We show that these transformations…

High Energy Physics - Theory · Physics 2026-04-10 Claude Duhr , Sara Maggio , Cathrin Semper , Sven F. Stawinski

In this article, we provide an extension of the Chen-Stein inequality for Poisson approximation in the total variation distance for sums of independent Bernoulli random variables in two ways. We prove that we can improve the rate of…

Probability · Mathematics 2022-10-26 Pierre-Loïc Méliot , Ashkan Nikeghbali , Gabriele Visentin

We consider the existence of invariant curves of real analytic reversible mappings which are quasi-periodic in the angle variables. By the normal form theorem, we prove that under some assumptions, the original mapping is changed into its…

Dynamical Systems · Mathematics 2023-05-16 Yan Zhuang , Daxiong Piao , Yanmin Niu

We define a new $Z_2$-valued index to characterize the topological properties of periodically driven two dimensional crystals when the time-reversal symmetry is enforced. This index is associated with a spectral gap of the evolution…

Mesoscale and Nanoscale Physics · Physics 2015-03-24 David Carpentier , Pierre Delplace , Michel Fruchart , Krzysztof Gawędzki

We establish a trace formula for signatures of hermitian forms over Azumaya algebras with involution, extending Knebusch's work on symmetric bilinear forms over finite \'etale extensions of commutative base rings. As an application when the…

Rings and Algebras · Mathematics 2026-03-06 Vincent Astier , Thomas Unger

An occurrence of a classical pattern p in a permutation \pi is a subsequence of \pi whose letters are in the same relative order (of size) as those in p. In an occurrence of a generalized pattern, some letters of that subsequence may be…

Combinatorics · Mathematics 2008-05-31 Einar Steingrimsson

A closed plane meander of order $n$ is a closed self-avoiding curve intersecting an infinite line $2n$ times. Meanders are considered distinct up to any smooth deformation leaving the line fixed. We have developed an improved algorithm,…

Statistical Mechanics · Physics 2009-10-31 Iwan Jensen

We study compositional inverses of permutation polynomials, complete mappings, mutually orthogonal Latin squares, and bent vectorial functions. Recently it was obtained in [33] the compositional inverses of linearized permutation binomials…

Number Theory · Mathematics 2014-09-24 Aleksandr Tuxanidy , Qiang Wang

The Hultman numbers enumerate permutations whose cycle graph has a given number of alternating cycles (they are relevant to the Bafna-Pevzner approach to genome comparison and genome rearrangements). We give two new interpretations of the…

Probability · Mathematics 2011-11-15 Nikita Alexeev , Peter Zograf

The Unified Transform provides a novel method for analyzing boundary value problems for linear and for integrable nonlinear PDEs. The numerical implementation of this method to linear elliptic PDEs formulated in the {\it interior} of a…

Analysis of PDEs · Mathematics 2014-01-14 A. S. Fokas , J. Lenells

The refined analytic torsion on compact Riemannian manifolds with boundary has been discussed by B. Vertman and the authors, but these two constructions are completely different. Vertman used a double of de Rham complex consisting of the…

Differential Geometry · Mathematics 2012-08-19 Rung-Tzung Huang , Yoonweon Lee

We prove that the rescaled one-point fluctuations of the boundary of the percolation cluster in the Bernoulli-Exponential first passage percolation around the diagonal converge to a new family of distributions. The limit law is indexed by…

Probability · Mathematics 2024-09-06 Bálint Vető

In this paper, we prove that given a hyperbolic polyhedral metric with an inversive distance circle packing, and a target discrete curvature satisfying Gauss-Bonnet formula, there exist a unique inversive distance circle packing which is…

Differential Geometry · Mathematics 2023-11-09 Xiang Zhu