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相关论文: On Relativistic Generalization of Perelman's W-ent…

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We investigate gravity models emerging from nonholonomic (subjected to non-integrable constraints) Ricci flows. Considering generalizations of G. Perelman's entropy functionals, relativistic geometric flow equations, nonholonomic Ricci…

综合物理 · 物理学 2020-11-30 Iuliana Bubuianu , Sergiu I. Vacaru , Elşen Veli Veliev

We elaborate on quantum geometric information flows, QGIFs, and emergent (modified) Einstein-Maxwell and Kaluza-Klein, KK, theories formulated in Lagrange-Hamilton and general covariant variables. There are considered nonholonomic…

综合物理 · 物理学 2021-02-01 Iuliana Bubuianu , Sergiu I. Vacaru , Elsen Veli Veliev

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…

综合物理 · 物理学 2020-07-27 Sergiu I. Vacaru

We study geometric relativistic flow and Ricci soliton equations which (for respective nonholonomic constraints and self-similarity conditions) are equivalent to the gravitational field equations of $R^2$ gravity and/or to the Einstein…

广义相对论与量子宇宙学 · 物理学 2016-03-25 Tamara Gheorghiu , Vyacheslav Ruchin , Olivia Vacaru , Sergiu I. Vacaru

We develop an approach to the theory of relativistic geometric flows and emergent gravity defined by entropy functionals and related statistical thermodynamics models. Nonholonomic deformations of G. Perelman's functionals and related…

综合物理 · 物理学 2021-01-29 Sergiu I. Vacaru , Elşen Veli Veliev , Laurenţiu Bubuianu

In 1870s, L. Boltzmann proved the famous $H$-theorem for the Boltzmann equation in the kinetic theory of gas and gave the statistical interpretation of the thermodynamic entropy. In 2002, G. Perelman introduced the notion of $W$-entropy and…

微分几何 · 数学 2013-03-22 Xiang-Dong Li

Perelman has given a gradient formulation for the Ricci flow, introducing an ``entropy function'' which increases monotonically along the flow.We pursue a thermodynamic analogy and apply Ricci flow ideas to general relativity. We…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Joseph Samuel , Sutirtha Roy Chowdhury

We introduce Perelman's $W$-entropy and prove the $W$-entropy formula along the geodesic flow on the $L^2$-Wasserstein space over compact Riemannian manifolds equipped with Otto's Riemannian metric, which allows us to recapture a previous…

概率论 · 数学 2021-11-30 Songzi Li , Xiang-Dong Li

In this survey paper, we give an overview of our recent works on the study of the $W$-entropy for the heat equation associated with the Witten Laplacian on super-Ricci flows and the Langevin deformation on Wasserstein space over Riemannian…

微分几何 · 数学 2017-10-17 Songzi Li , Xiang-Dong Li

This book gives an introduction to fundamental aspects of generalized Riemannian, complex, and K\"ahler geometry. This leads to an extension of the classical Einstein-Hilbert action, which yields natural extensions of Einstein and…

微分几何 · 数学 2020-08-31 Mario Garcia-Fernandez , Jeffrey Streets

The gravitational field equations in general relativity (GR) consist of a sophisticated system of nonlinear partial differential equations. Solving such equations in some generic off-diagonal forms is usually a hard analytic or numeric…

广义相对论与量子宇宙学 · 物理学 2025-08-18 Sergiu I. Vacaru , Elşen V. Veliev

We formulate a statistical analogy of regular Lagrange mechanics and Finsler geometry derived from Grisha Perelman's functionals generalized for nonholonomic Ricci flows. There are elaborated explicit constructions when nonholonomically…

微分几何 · 数学 2015-06-26 Sergiu I. Vacaru

This is the second paper in a series of works devoted to nonholonomic Ricci flows. By imposing non-integrable (nonholonomic) constraints on the Ricci flows of Riemannian metrics we can model mutual transforms of generalized Finsler-Lagrange…

微分几何 · 数学 2008-11-26 Sergiu I. Vacaru

We formulate the fractional Ricci flow theory for (pseudo) Riemannian geometries enabled with nonholonomic distributions defining fractional integro-differential structures, for non-integer dimensions. There are constructed fractional…

微分几何 · 数学 2012-08-13 Sergiu I. Vacaru

In this paper, it is elaborated the theory the Ricci flows for manifolds enabled with nonintegrable (nonholonomic) distributions defining nonlinear connection structures. Such manifolds provide a unified geometric arena for nonholonomic…

微分几何 · 数学 2007-05-23 Sergiu I. Vacaru

Non linear sigma models are quantum field theories describing, in the large deviations sense, random fluctuations of harmonic maps between a Riemann surface and a Riemannian manifold. Via their formal renormalization group analysis, they…

数学物理 · 物理学 2014-05-06 Mauro Carfora

In this paper, we extend Perelman's $W$-entropy formula and the concavity of the Shannon entropy power from smooth Ricci flow to super Ricci flows on metric measure spaces. Moreover, we prove the Li-Yau-Hamilton-Perelman Harnack inequality…

微分几何 · 数学 2025-05-07 Xiang-Dong Li

$\mathscr{W}$-entropy and reduced volume for the Ricci flow were introduced by Perelman, which had proved their importance in the study of the Ricci flow. L. Ni studied the analogous concepts for the linear heat equation on the static…

微分几何 · 数学 2017-05-30 Guoyi Xu

We prove the existence and uniqueness of a weighted analogue of the Fefferman-Graham ambient metric for manifolds with density. We then show that this ambient metric forms the natural geometric framework for the singular Ricci flow: given a…

微分几何 · 数学 2026-01-27 Ayush Khaitan

We extend to a theory of nonassociative geometric flows a string-inspired model of nonassociative gravity determined by star product and R-flux deformations. The nonassociative Ricci tensor and curvature scalar defined by (non) symmetric…

综合物理 · 物理学 2023-09-01 Laurenţiu Bubuianu , Sergiu I. Vacaru , Elşen Veli Veliev
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