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This work consists an introduction to the classical and quantum information theory of geometric flows of (relativistic) Lagrange--Hamilton mechanical systems. Basic geometric and physical properties of the canonical nonholonomic…

General Physics · Physics 2020-07-27 Sergiu I. Vacaru

Jacobi operators appear as kinetic operators of several classes of noncommutative field theories (NCFT) considered recently. This paper deals with the case of bounded Jacobi operators. A set of tools mainly issued from operator and spectral…

Mathematical Physics · Physics 2015-08-07 Antoine Géré , Jean-Christophe Wallet

We consider a generalized Ricci flow with a given (not necessarily closed) three-form and establish the higher derivatives estimates for compact manifolds. As an application, we prove the compactness theorem for this generalized Ricci flow.…

Differential Geometry · Mathematics 2013-01-18 Yi Li

We elaborate on statistical thermodynamics models of relativistic geometric flows as generalisations of G. Perelman and R. Hamilton theory centred around C. Carath\'{e}odory axiomatic approach to thermodynamics with Pfaffian differential…

General Physics · Physics 2022-01-25 Iuliana Bubuianu , Sergiu I. Vacaru

Spectral problem for the Dirac operator with regular but not strongly regular boundary conditions and complex-valued potential summable over a finite interval is considered. The purpose of this paper is to find conditions under which the…

Spectral Theory · Mathematics 2019-02-11 Alexander Makin

We develop by example a type of index theory for non-Fredholm operators. A general framework using cyclic homology for this notion of index was introduced in a separate article [CaKa13] where it may be seen to generalise earlier ideas of…

Functional Analysis · Mathematics 2014-05-20 Alan Carey , Harald Grosse , Jens Kaad

We give a spectral interpretation of the critical zeros of the Riemann zeta function as an absorption spectrum, while eventual noncritical zeros appear as resonances. We give a geometric interpretation of the explicit formulas of number…

Number Theory · Mathematics 2007-05-23 Alain Connes

For any variable number, a non-stationary Ruijsenaars function was recently introduced as a natural generalization of an explicitly known asymptotically free solution of the trigonometric Ruijsenaars model, and it was conjectured that this…

Mathematical Physics · Physics 2020-10-22 Edwin Langmann , Masatoshi Noumi , Junichi Shiraishi

We provide a unified approach to Fra\"{\i}ss\'{e} limits in functional analysis, including the Gurarij space, the Poulsen simplex, and their noncommutative analogs. We obtain in this general framework many known and new results about the…

Functional Analysis · Mathematics 2016-06-28 Martino Lupini

We introduce a new parabolic flow deforming any Riemannian metric on a spin manifold by following a constrained gradient flow of the total scalar curvature. This flow is built out of the well-known Dirac-Einstein functional. We prove local…

Analysis of PDEs · Mathematics 2024-09-20 Yannick Sire , Tian Xu

Let $A(t)$ be a continuous path of Fredhom operators, we first prove that the spectral flow $sf(A(t))$ is cogredient invariant. Based on this property, we give a decomposition formula of spectral flow if the path is invariant under a…

Functional Analysis · Mathematics 2018-08-14 Xijun Hu , Li Wu

We show that a recent spectral flow approach proposed by Berkolaiko-Cox-Marzuola for analyzing the nodal deficiency of the nodal partition associated to an eigenfunction can be extended to more general partitions. To be more precise, we…

Spectral Theory · Mathematics 2021-03-16 Bernard Helffer , Mikael Persson Sundqvist

By means of a Kaluza-Klein type argument we show that the Perelman's F-functional is the Einstein-Hilbert action in a space with extra ``phantom'' dimensions. In this way, we try to interpret some remarks of Perelman in the introduction and…

Differential Geometry · Mathematics 2010-05-31 Marco Caldarelli , Giovanni Catino , Zindine Djadli , Annibale Magni , Carlo Mantegazza

In this paper, we introduce an entropy functional on Riemannian foliation, inspired by the work of , which is monotonically along the transverse Ricci flow. We relate their gradient flow, via diffeomorphism preserving the foliated structure…

Differential Geometry · Mathematics 2022-09-20 Dexie Lin

In this paper, we study the spectral theory for nonlocal dispersal operators with time periodic indefinite weight functions subject to Dirichlet type, Neumann type and spatial periodic type boundary conditions. We first obtain necessary and…

Dynamical Systems · Mathematics 2016-03-01 Wenxian Shen , Xiaoxia Xie

In this article we study two-dimensional Dirac Hamiltonians with non-commutativity both in coordinates and momenta from an algebraic perspective. In order to do so, we consider the graded Lie algebra $\mathfrak{sl}(2|1)$ generated by…

High Energy Physics - Theory · Physics 2022-11-30 Horacio Falomir , Joaquin Liniado , Pablo Pisani

In Riemannian geometry, the Ricci flow is the analogue of heat diffusion; a deformation of the metric tensor driven by its Ricci curvature. As a step towards resolving the problem of time in quantum gravity, we attempt to merge the Ricci…

General Relativity and Quantum Cosmology · Physics 2022-09-05 Mohammed Alzain

We review the concepts of the index of a Fredholm operator, the spectral flow of a curve of self-adjoint Fredholm operators, the Maslov index of a curve of Lagrangian subspaces in symplectic Hilbert space, and the eta invariant of operators…

Analysis of PDEs · Mathematics 2009-09-29 David Bleecker , Bernhelm Booss-Bavnbek

On the universal bundle of unit spinors we study a natural energy functional whose critical points, if dim M \geq 3, are precisely the pairs (g, {\phi}) consisting of a Ricci-flat Riemannian metric g together with a parallel g-spinor…

Differential Geometry · Mathematics 2018-11-13 Bernd Ammann , Hartmut Weiss , Frederik Witt

Let $\mathcal{S}\subset \mathcal{L}^2 \subset \mathcal{S}^*$ be the Gel'fand triple over the Bernoulli space, where elements of $\mathcal{S}^*$ are called Bernoulli generalized functionals. In this paper, we define integrals of Bernoulli…

Functional Analysis · Mathematics 2022-11-18 Jing Zhang , Caishi Wang , Lu Zhang , Lixia Zhang
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