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We present a new approach to the problem of proving global stability, based on symplectic geometry and with a focus on systems with several conserved quantities. We also provide a proof of instability for integrable systems whose momentum…

数学物理 · 物理学 2025-10-28 Verónica Errasti Díez , Jordi Gaset Rifà , Manuel Lainz

The generalized symmetry method is applied to a class of completely discrete equations including the Adler-Bobenko-Suris list. Assuming the existence of a generalized symmetry, we derive a few integrability conditions suitable for testing…

可精确求解与可积系统 · 物理学 2015-05-13 D. Levi , R. I. Yamilov

We present a new type of integral that is supposed to extend the usability of the Lebesgue integral in certain types of investigations. It is based on the Hausdorff dimension and measure. We examine the basic properties of the integral and…

经典分析与常微分方程 · 数学 2024-01-23 Attila Losonczi

Our purpose in this present paper is to investigate generalized integration formulas containing the extended generalized hypergeometric function and obtained results are expressed in terms of extended hypergeometric function. Certain…

经典分析与常微分方程 · 数学 2017-06-08 G. Rahman , A. Ghaffar , K. S. Nisar , S. Mubeen

We introduce the notion of set-wise injective maps and provide results about fiber embeddings. Our results improve some previous results in this area.

一般拓扑 · 数学 2016-05-17 Eiichi Matsuhashi , Vesko Valov

Adjoint logic is a general approach to combining multiple logics with different structural properties, including linear, affine, strict, and (ordinary) intuitionistic logics, where each proposition has an intrinsic mode of truth. It has…

计算机科学中的逻辑 · 计算机科学 2024-02-05 Junyoung Jang , Sophia Roshal , Frank Pfenning , Brigitte Pientka

An introductory overview of vector spaces, algebras, and linear geometries over an arbitrary commutative field is given. Quotient spaces are emphasized and used in constructing the exterior and the symmetric algebras of a vector space.…

历史与综述 · 数学 2011-10-18 Richard A. Smith

We review a special technique for evaluating challenging integrals by providing a number of examples. Many of our examples prove integrals from the popular table of Gradshteyn and Ryzhik.

历史与综述 · 数学 2019-01-08 Khristo N. Boyadzhiev

Dirac's constraint analysis and the symplectic structure of geodesic equations are obtained for the general cylindrically symmetric stationary spacetime. For this metric, using the obtained first order Lagrangian, the geodesic equations of…

广义相对论与量子宇宙学 · 物理学 2009-11-11 Ugur Camci

A simple iteration methodology for the solution of a set of a linear algebraic equations is presented. The explanation of this method is based on a pure geometrical interpretation and pictorial representation. Convergence using this method…

计算物理 · 物理学 2010-12-30 Avas V. Khugaev , Renat A. Sultanov , D. Guster

We study the notion of geometric structures for toposes: This generalizes the notion of (X,G) manifolds. We give some applications to algebraic geometry

微分几何 · 数学 2007-05-23 A Tsemo

We present an algorithm that reveals relevant contributions in non-threshold-type asymptotic expansion of Feynman integrals about a small parameter. It is shown that the problem reduces to finding a convex hull of a set of points in a…

高能物理 - 唯象学 · 物理学 2011-07-13 Alexey Pak , Alexander Smirnov

Application of the geometrically-inspired representations to the epsilon-expansion of the two-point function with different masses is considered. Explicit result for an arbitrary term of the expansion is obtained in terms of log-sine…

高能物理 - 理论 · 物理学 2007-05-23 A. I. Davydychev

The paper presents shortly the geometric approach to the problem of a general quantization formalism, both physically meaningful and mathematically consistent.

物理学史与哲学 · 物理学 2026-01-19 Marius Grigorescu

Several methods of evaluation are presented for a family of Selberg-like integrals that arose in the computation of the algebraic-geometric degrees of a family of multiplicity-free nilpotent K_C-orbits. First, adapting the technique of…

表示论 · 数学 2007-05-23 B. Binegar

We obtain the asymptotic expansion for large integer $n$ of a generalised sine-integral \[\int_0^\infty\left(\frac{\sin\,x}{x}\right)^{n}dx\] by utilising the saddle-point method. This expansion is shown to agree with recent results of J.…

经典分析与常微分方程 · 数学 2021-04-30 R B Paris

We study some aspects of the geometric side of the Jacquet-Rallis relative trace formula. Globally, we compute each geometric term of the Jacquet-Rallis relative trace formula on the general linear group for regular supported test…

表示论 · 数学 2024-08-23 Weixiao Lu

We apply techniques from symplectic geometry to extend and give a new proof of the complex convexity theorem of Gindikin-Kroetz.

辛几何 · 数学 2007-05-23 Bernhard Kroetz , Michael Otto

A brief introduction to geometric valuation theory is given. The focus is on classification results for valuations on convex bodies and on function spaces.

度量几何 · 数学 2024-04-09 Monika Ludwig

We revisit the task of learning a Euclidean metric from data. We approach this problem from first principles and formulate it as a surprisingly simple optimization problem. Indeed, our formulation even admits a closed form solution. This…

机器学习 · 统计学 2016-07-19 Pourya Habib Zadeh , Reshad Hosseini , Suvrit Sra