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In this paper, we study inverse curvature flows for strictly convex, capillary hypersurfaces in the unit Euclidean ball. We establish the existence and convergence results for a class of such flows. As an application, we derive a family of…

Differential Geometry · Mathematics 2025-07-17 Shujing Pan , Bo Yang

We consider varieties generated by finite closure algebras whose canonical relations have two levels, and whose restriction to a level is an "extremal" relation, i.e. the identity or the universal relation. The corresponding logics have…

Logic · Mathematics 2023-09-21 Ivo Düntsch , Wojciech Dzik

In algebraic quantum field theory the (inverse) temperature is shown to be a macroscopic \textit{order parameter} to parametrize mutually disjoint thermal \textit{sectors} arising from the \textit{broken scale invariance} under…

Mathematical Physics · Physics 2007-05-23 Izumi Ojima

In this paper, we prove that a biderivation of a finite dimensional complex simple Lie algebra without the restriction of skewsymmetric is inner. As an application, the biderivation of a general linear Lie algebra is presented. In…

Rings and Algebras · Mathematics 2016-12-20 Xiaomin Tang

A finite-dimensional unital and associative algebra over $\mathbb{R}$, or what we shall call simply "an algebra" in this paper for short, generalities the construction by which we derive the complex numbers by "adjoining an element $i$" to…

Rings and Algebras · Mathematics 2017-08-04 Nathan BeDell

A realization of the affine Lie algebra ${A^{(1)}_1}$ and the relevant $Z$-algebra at negative level $-k$ is given in terms of parafermions. This generalizes the recent work on realization of the affine Lie algebra at the critical level.

Quantum Algebra · Mathematics 2015-06-02 Jilan Dong , Naihuan Jing

A model computational quantum thermodynamic network is constructed with two variable temperature baths coupled by a linker system, with an asymmetry in the coupling of the linker to the two baths. It is found in computational simulations…

Statistical Mechanics · Physics 2021-11-10 Phillip C. Lotshaw , Michael E. Kellman

The union-closed sets conjecture, attributed to P\'eter Frankl from 1979, states that for any non-empty finite union-closed family of finite sets not consisting of only the empty set, there is an element that is in at least half of the sets…

Combinatorics · Mathematics 2023-06-08 Masoud Zargar

We study shear-free spherically symmetric relativistic models with heat flow. Our analysis is based on Lie's theory of extended groups applied to the governing field equations. In particular, we generate a five-parameter family of…

General Relativity and Quantum Cosmology · Physics 2015-06-12 A. M. Msomi , K. S. Govinder , S. D. Maharaj

Let k be a perfect field and A a finite dimensional k-algebra of finite global dimension (e.g. the path algebra of a finite quiver without oriented cycles). Making use of the recent theory of noncommutative motives, we prove that the value…

K-Theory and Homology · Mathematics 2013-05-07 Marcello Bernardara , Goncalo Tabuada

We consider the compressible Euler equations with potential temperature transport, a system widely used in atmospheric modelling to describe adiabatic, inviscid flows. In the low Mach number regime, the equations become stiff and pose…

Numerical Analysis · Mathematics 2025-08-22 K. R. Arun , Rahuldev Ghorai

Let $(M,g,J)$ be a closed K\"ahler manifold with negative sectional curvature and complex dimension $m := \dim_{\mathbb{C}} M \geq 2$. In this article, we study the unitary frame flow, that is, the restriction of the frame flow to the…

Dynamical Systems · Mathematics 2024-12-25 Mihajlo Cekić , Thibault Lefeuvre , Andrei Moroianu , Uwe Semmelmann

We introduce and study a multivariate function that counts nowhere-zero flows on a graph G, in which each edge of G has an individual capacity. We prove that the associated counting function is a piecewise-defined polynomial in these…

Combinatorics · Mathematics 2016-05-10 Matthias Beck , Alyssa Cuyjet , Gordon Rojas Kirby , Molly Stubblefield , Michael Young

A first principle reciprocating quantum refrigerator is investigated with the purpose of determining the limitations of cooling to absolute zero. We find that if the energy spectrum of the working medium possesses an uncontrollable gap,…

Chemical Physics · Physics 2015-05-13 Tova Feldmann , Ronnie Kosloff

The main goal of this paper is to prove the following theorem: Let $\frak k$ be an $\frak {sl}_2$-subalgebra of a semisimple Lie algebra $\frak g$, none of whose simple factors is of type $A1$. Then there exists a positive integer $b(\frak…

Representation Theory · Mathematics 2007-05-23 Jeb F. Willenbring , Gregg Zuckerman

Recently, we introduced the notion of flow (depending on time) of finite-dimensional algebras. A flow of algebras (FA) is a particular case of a continuous-time dynamical system whose states are finite-dimensional algebras with (cubic)…

Rings and Algebras · Mathematics 2017-06-09 M. Ladra , U. A. Rozikov

Given a totally real number field $F$, we show that there are only finitely many totally real extensions of $K$ of a fixed degree that admit a universal quadratic form defined over $F$. We further obtain several explicit classification…

Number Theory · Mathematics 2025-10-27 Vitezslav Kala , Daejun Kim , Seok Hyeong Lee

This is the second paper of our series of papers on one dimensional conformal metric flows. In this paper we continue our studies of the one dimensional conformal metric flows, which were introduced in math.AP/0611254. We prove the global…

Analysis of PDEs · Mathematics 2007-05-23 Yilong Ni , Meijun Zhu

We study $2$-dimensional unit vector flows on graphs, that is, nowhere-zero flows that assign to each oriented edge a unit vector in $\mathbb R^{3}$. We give a new geometric characterization of $\mathbb S^{2}$-flows on cubic graphs. We also…

Combinatorics · Mathematics 2026-02-26 Hussein Houdrouge , Bobby Miraftab , Pat Morin

The temperature dependence of structural properties for infinitely long gold nanowires is studied. The molecular dynamics simulation method and the embedded-atom potential are used. The wires constructed at T=0 K with a face-centered cubic…

Materials Science · Physics 2009-10-31 G. Bilalbegovic