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200 篇论文

Many situations in physics, biology, and engineering consist of the transport of some physical quantity through a network of narrow channels. The ability of a network to transport such a quantity in every direction can be described by the…

适应与自组织系统 · 物理学 2007-05-23 Marc Durand , Denis Weaire

A compactness framework is established for approximate solutions to subsonic-sonic flows governed by the steady full Euler equations for compressible fluids in arbitrary dimension. The existing compactness frameworks for the two-dimensional…

偏微分方程分析 · 数学 2015-07-28 Gui-Qiang G. Chen , Fei-Min Huang , Tian-Yi Wang

A compactness framework is formulated for the incompressible limit of approximate solutions with weak uniform bounds with respect to the adiabatic exponent for the steady Euler equations for compressible fluids in any dimension. One of our…

偏微分方程分析 · 数学 2016-06-22 Gui-Qiang G. Chen , Feimin Huang , Tian-Yi Wang , Wei Xiang

We prove uniqueness of instantaneously complete Ricci flows on surfaces. We do not require any bounds of any form on the curvature or its growth at infinity, nor on the metric or its growth (other than that implied by instantaneous…

微分几何 · 数学 2016-01-20 Peter M. Topping

We introduce a general framework for flow problems over hypergraphs. In our problem formulation, which we call the convex flow problem, we have a concave utility function for the net flow at every node and a concave utility function for…

最优化与控制 · 数学 2024-05-21 Theo Diamandis , Guillermo Angeris , Alan Edelman

Superfluidity and superconductivity have been studied widely since the last century in many different contexts ranging from nuclear matter to atomic quantum gases. The rigidity of these systems with respect to external perturbations results…

量子气体 · 物理学 2015-05-05 A. Paris-Mandoki , J. Shearring , F. Mancarella , T. M. Fromhold , A. Trombettoni , P. Krüger

In this paper we consider the Ricci flow on manifolds with boundary with appropriate control on its mean curvature and conformal class. We obtain higher order estimates for the curvature and second fundamental form near the boundary,…

微分几何 · 数学 2016-11-07 Panagiotis Gianniotis

Cavity flow problems in two dimensions, as well as in the axially symmetric three-dimensional case, have been extensively studied in the literature from a qualitative perspective. While numerous results exist concerning minimizers or stable…

偏微分方程分析 · 数学 2025-09-03 Masoud Bayrami , Morteza Fotouhi , Parisa Vosooqnejad

We consider high dimensional variants of the maximum flow and minimum cut problems in the setting of simplicial complexes and provide both algorithmic and hardness results. By viewing flows and cuts topologically in terms of the simplicial…

数据结构与算法 · 计算机科学 2021-06-29 William Maxwell , Amir Nayyeri

A variant of the classical optimal transportation problem is: among all joint measures with fixed marginals and which are dominated by a given density, find the optimal one. Existence and uniqueness of solutions to this variant were…

最优化与控制 · 数学 2018-01-23 Jonathan Korman , Robert J. McCann

Flow-based models are powerful tools for designing probabilistic models with tractable density. This paper introduces Convex Potential Flows (CP-Flow), a natural and efficient parameterization of invertible models inspired by the optimal…

机器学习 · 计算机科学 2021-02-25 Chin-Wei Huang , Ricky T. Q. Chen , Christos Tsirigotis , Aaron Courville

In this paper we prove convergence and compactness results for Ricci flows with bounded scalar curvature and entropy. More specifically, we show that Ricci flows with bounded scalar curvature converge smoothly away from a singular set of…

微分几何 · 数学 2018-02-08 Richard H. Bamler

Throughput is a main performance objective in communication networks. This paper considers a fundamental maximum throughput routing problem -- the all-or-nothing multicommodity flow (ANF) problem -- in arbitrary directed graphs and in the…

数据结构与算法 · 计算机科学 2022-07-27 Anya Chaturvedi , Chandra Chekuri , Mengxue Liu , Andréa W. Richa , Mattias Rost , Stefan Schmid , Jamison Weber

We present evidence for the existence of infinitely-many new families of renormalisation group flows between the nonunitary minimal models of conformal field theory. These are associated with perturbations by the $\phi_{21}$ and $\phi_{15}$…

高能物理 - 理论 · 物理学 2009-10-31 Patrick Dorey , Clare Dunning , Roberto Tateo

We develop a systematic approach, based on convex programming and real analysis, for obtaining upper bounds on the capacity of the binary deletion channel and, more generally, channels with i.i.d. insertions and deletions. Other than the…

信息论 · 计算机科学 2018-06-12 Mahdi Cheraghchi

We study the local asymptotic behavior of divergence-like functionals of a family of $d$-dimensional Infinitely Divisible Random Fields. Specifically, we derive limit theorems of surface integrals over Lipschitz manifolds for this class of…

概率论 · 数学 2023-11-06 José Ulises Márquez-Urbina , Orimar Sauri

We study ancient Ricci flows which admit asymptotic solitons in the sense of Perelman. We prove that the asymptotic solitons must coincide with Bamler's tangent flows at infinity. Furthermore, we show that Perelman's $\nu$-functional is…

微分几何 · 数学 2021-06-15 Pak-Yeung Chan , Zilu Ma , Yongjia Zhang

The article considers systems of interacting particles on networks with adaptively coupled dynamics. Such processes appear frequently in natural processes and applications. Relying on the notion of graph convergence, we prove that for large…

动力系统 · 数学 2026-05-20 Sebastian Throm

In this paper, we study independent (Bernoulli) bond percolation in dimensions $d \ge 2$, focusing on the maximum diameter of finite clusters in the non-critical regime ($p\neq p_c$). We prove that the maximum diameter $R_n$ satisfies $R_n…

概率论 · 数学 2026-01-22 Kaito Kobayashi

In topological data science, categories with a flow have become ubiquitous, including as special cases examples like persistence modules and sheaves. With the flow comes an interleaving distance, which has proven useful for applications. We…

范畴论 · 数学 2019-01-16 Joshua Cruz