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We introduce distinct definitions of local stable/unstable sets for flows without fixed points, namely, kinematic, geometric, and sectionally geometric, and discuss relations between them. We prove the existence of continua with a uniform…

Dynamical Systems · Mathematics 2025-12-11 Alfonso Artigue , Bernardo Carvalho , Margoth Tacuri

Interferences in the distributions of complementary variables for angular momentum - two level systems are discussed. A quantum phase distribution is introduced for angular momentum. Explicit results for the phase distributions and the…

Quantum Physics · Physics 2009-10-30 G. S. Agarwal , R. P. Singh

An error in the proof of Lemma 2 (ii) in [I. Werner, Math. Proc. Camb. Phil. Soc. 140(2) 333-347 (2006)], which claims the absolute continuity of dynamically defined measures (DDM), is identified. This undermines the assertion of the…

Dynamical Systems · Mathematics 2020-03-26 Ivan Werner

We consider mesh functions which are discrete convex in the sense that their central second order directional derivatives are positive. Analogous to the case of a uniformly bounded sequence of convex functions, we prove that the uniform…

Numerical Analysis · Mathematics 2019-11-01 Gerard Awanou

We define the concept of continuum wise expansive for flows, and we prove that continuum wise expansive flows on compact metric spaces with topological dimension greater than one have positive entropy.

Dynamical Systems · Mathematics 2015-10-29 Alexander Arbieto , Welington Cordeiro , Maria Jose Pacifico

It is rigorously proved that quasilinear impulsive systems possess unpredictable solutions when a perturbation generated by an unpredictable sequence is applied. The existence, uniqueness, as well as asymptotic stability of such solutions…

Dynamical Systems · Mathematics 2021-11-03 Mehmet Onur Fen , Fatma Tokmak Fen

The current understanding of M(atrix) theory is that in the large N limit certain supersymmetric Yang Mills theories become equivalent to M-theory in the infinite momentum frame. In this paper the conjecture is put forward that the…

High Energy Physics - Theory · Physics 2007-05-23 Leonard Susskind

In this paper the notion of modular cone metric space is introduced and some properties of such spaces are investigated. Also we define convex modular cone metric which takes values in CR(Y) where Y is a compact Hausdorff space. Then a…

Functional Analysis · Mathematics 2013-10-15 Saeedeh Shamsi Gamchi , Mohammad Janfada , Asadollah Niknam

The Witten-Yau theorem in the AdS/CFT correspondence conjectures that the conformal boundary to AdS space must possess a metric of non-negative scalar curvature for the conformal field theory defined thereon to be free of pathologies. By…

Mathematical Physics · Physics 2012-11-21 James A. Reid , Charles H. -T. Wang

We study thermoelectric conductivities and shear viscosities in a holographically anisotropic model, which is dual to a spatially anisotropic $\mathcal{N}=4$ super-Yang-Mills theory at finite chemical potential. Momentum relaxation is…

High Energy Physics - Theory · Physics 2015-11-25 Xian-Hui Ge , Yi Ling , Chao Niu , Sang-Jin Sin

In the context of geodesic flows of noncompact negatively curved manifolds, we propose three different definitions of entropy and pressure at infinity, through growth of periodic orbits, critical exponents of Poincar\'e series, and entropy…

Differential Geometry · Mathematics 2023-03-08 Sébastien Gouëzel , Camille Noûs , Barbara Schapira , Samuel Tapie , Felipe Riquelme

A new approach has been used to evaluate the momentum and angular momentum of the isotropic and homogeneous cosmological models. It is shown that the results obtained for momentum exactly coincide with those already available in the…

General Relativity and Quantum Cosmology · Physics 2007-05-23 M. Sharif

Sufficiently fine granular systems appear to exhibit continuum properties, though the precise continuum limit obtained can be vastly different depending on the particular system. We investigate the continuum limit of an unconfined, dense…

Soft Condensed Matter · Physics 2015-06-04 Nicholas Guttenberg

This paper discusses a more general contractive condition for a class of extended cyclic self-mappings on the union of a finite number of subsets of a metric space which are allowed to have a finite number of successive images in the same…

Functional Analysis · Mathematics 2012-08-06 M. De la Sen

We consider a flow by powers of Gauss curvature under the obstruction that the flow cannot penetrate a prescribed region, so called an obstacle. For all dimensions and positive powers, we prove the optimal curvature bounds of solutions and…

Differential Geometry · Mathematics 2023-10-05 Ki-Ahm Lee , Taehun Lee

The well-known issue with the absence of conservation of angular momentum in classical particle systems with periodic boundary conditions is addressed. It is shown that conventional theory based on Noether's theorem fails to explain the…

Classical Physics · Physics 2017-08-01 Vitaly A. Kuzkin

The cardinal direction calculus (CDC) proposed by Goyal and Egenhofer is a very expressive qualitative calculus for directional information of extended objects. Early work has shown that consistency checking of complete networks of basic…

Artificial Intelligence · Computer Science 2010-11-05 Weiming Liu , Sanjiang Li

How does one measure the angular momentum carried away by gravitational radiation during the merger of a binary black hole? This has been a subtle issue since the 1960's due to the discovery of ``supertranslation ambiguity": the angular…

General Relativity and Quantum Cosmology · Physics 2023-03-07 Mu-Tao Wang

We study systematically cross sections of probability preserving actions of unimodular groups and their associated transverse measures, and introduce the invariant \emph{intersection covolume} to quantify their periodicity. Our main…

Dynamical Systems · Mathematics 2026-02-24 Nachi Avraham-Re'em , Michael Björklund , Rickard Cullman

As one of the most elegant theories in physics, Yang-Mills (YM) theory not only incorporates Maxwell's equations unifying electromagnetism, but also underpins the standard model explaining the electroweak and strong interactions in a…

Quantum Physics · Physics 2024-01-04 Xing-Yan Fan , Xiang-Ru Xie , Jing-Ling Chen