English
Related papers

Related papers: CAR flows on type III factors and its extendabilit…

200 papers

We focus in this work on the study of traffic in open systems using a modified version of an existing cellular automaton model. We demonstrate that the open system is rather different from the closed system in its 'choice' of a unique…

Classical Physics · Physics 2007-05-23 M. E. Larraga , J. A. del Rio , Anita Mehta

We show that the Markov semigroup obtained by Floricel in [Flo08] compressing the $E_0$-semigroup of Skeide [Ske06], does not consist of endomorphisms. It, therefore, cannot be the tail flow of an $E_0$-semigroup. As a corollary of our…

Operator Algebras · Mathematics 2013-11-20 Michael Skeide

We demonstrate that any k*-expansive vector field on a closed manifold exhibits rescaling expansiveness. This enhances the principal outcome outlined in \cite{a}. The verification of this assertion hinges on the introduction and exploration…

Dynamical Systems · Mathematics 2023-12-01 A. Rojas , X. Wen , Y. Yang

In this paper we define currents relative to a free factor system. We prove that a fully irreducible outer automorphism relative to a free factor system acts with uniform north-south dynamics on a subspace of the space of projective…

Geometric Topology · Mathematics 2017-10-27 Radhika Gupta

In connection with parametric rescaling of free dynamics of CCR, we introduce a flow on the set of covariance forms and investigate its thermodynamic behavior at low temperature with the conclusion that every free state approaches to a…

Mathematical Physics · Physics 2019-10-01 Shigeru Yamagami

Hellerman et al. (arXiv:1505.01537) have shown that in a generic CFT the spectrum of operators carrying a large U(1) charge can be analyzed semiclassically in an expansion in inverse powers of the charge. The key is the operator state…

High Energy Physics - Theory · Physics 2017-06-28 Alexander Monin , David Pirtskhalava , Riccardo Rattazzi , Fiona K. Seibold

The research in the present paper was motivated by the conjecture of Ryj\'{a}\v{c}ek that every locally connected graph is weakly pancyclic. For a connected locally connected graph $G$ of order at least $3$, our results are as follows: If…

Combinatorics · Mathematics 2015-07-28 Christoph Brause , Dieter Rautenbach , Ingo Schiermeyer

We analyse volume-preserving actions of product groups on Riemannian manifolds. To this end, we establish a new superrigidity theorem for ergodic cocycles of product groups ranging in linear groups. There are no a priori assumptions on the…

Group Theory · Mathematics 2019-12-19 Alex Furman , Nicolas Monod

Superconductivity in crystals without inversion symmetry has received extensive attention due to its unconventional pairing and possible nontrivial topological properties. Using first-principles calculations, we systemically study the…

Superconductivity · Physics 2020-04-07 Chenchao Xu , Ninghua Wu , Guo-Xiang Zhi , Bing-Hua Lei , Xu Duan , Fanlong Ning , Chao Cao , Qijin Chen

In this note we discuss (Gaussian) intrinsic conditional autoregressive (CAR) models for disconnected graphs, with the aim of providing practical guidelines for how these models should be defined, scaled and implemented. We show how these…

Methodology · Statistics 2017-05-16 Anna Freni-Sterrantino , Massimo Ventrucci , Håvard Rue

We present modeling of the incompressible viscous flows in the domain containing an unconfined fluid and a porous medium. For such setting a rigorous derivation of the Beavers-Joseph-Saffman interface condition was undertaken by J\"ager and…

Analysis of PDEs · Mathematics 2013-09-17 Anna Marciniak-Czochra , Andro Mikelic

Let M be a non-orientable compact 2-manifold of genus 4. Then there exists a family of quasi-minimal, Kupka-Smale smooth vector fields X_r in M, depending smoothly on 0<=r<e, such that, for some flow box V in M of X_0, and for all 0<=r,v<e,…

Dynamical Systems · Mathematics 2007-05-23 Carlos Gutierrez , Benito Pires

Along a Ricci flow solution on a closed manifold, we show that if Ricci curvature is uniformly bounded from below, then a scalar curvature integral bound is enough to extend flow. Moreover, this integral bound condition is optimal in some…

Differential Geometry · Mathematics 2007-05-23 Bing Wang

In this work, we obtain existence criteria for Chern-Ricci flows on noncompact manifolds. We generalize a result by Tossati-Wienkove on Chern-Ricci flows to noncompact manifolds and at the same time generalize a result for Kahler-Ricci…

Differential Geometry · Mathematics 2017-08-18 Man-Chun Lee , Luen-Fai Tam

In this paper we define the torsion flow, a CR analogue of the Ricci flow. For homogeneous CR manifolds we give explicit solutions to the torsion flow illustrating various kinds of behavior. We also derive monotonicity formulas for CR…

Differential Geometry · Mathematics 2014-01-23 Shu-Cheng Chang , Otto van Koert , Chin-Tung Wu

In this paper, we investigate non-abelian extensions and inducibility of pairs of automorphisms of Lie triple systems. First, we introduce non-abelian cohomology groups and classify the non-abelian extensions in terms of non-abelian…

Rings and Algebras · Mathematics 2024-06-24 Qinxiu Sun , Shuangjian Guo

We study the flow of an electrically charged fluid through an elastic and porous medium. A three continuum model consisting of an elastic solid, a viscous fluid, and a mobile charge continuum is used. The relevant laws of physics are…

Soft Condensed Matter · Physics 2024-03-19 Jiashi Yang

We establish criteria for turbulence in certain spaces of C*-algebra representations and apply this to the problem of nonclassifiability by countable structures for group actions on a standard atomless probability space (X,\mu) and on the…

Operator Algebras · Mathematics 2014-02-26 David Kerr , Hanfeng Li , Mikael Pichot

We characterize, using commuting zero-flux homologies, those volume-preserving vector fields on a $3$-manifold that are steady solutions of the Euler equations for some Riemannian metric. This result extends Sullivan's homological…

Differential Geometry · Mathematics 2020-02-11 Daniel Peralta-Salas , Ana Rechtman , Francisco Torres de Lizaur

Our interest in this work is in group extensions of minimal flows with compact abelian groups in the fibres. We study their structure from categorical and algebraic points of view, and describe relations of their dynamics to the…

Dynamical Systems · Mathematics 2021-01-13 Matúš Dirbák
‹ Prev 1 8 9 10 Next ›