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In this paper, the averaging principle for quasi-geostrophic motions with rapidly oscillating forcing is proved, both on finite but large time intervals and on the entire time axis. This includes comparison estimate, stability estimate, and…

偏微分方程分析 · 数学 2016-09-07 Hongjun Gao , Jinqiao Duan

Greedy point insertion algorithms have emerged as an attractive tool for the solution of minimization problems over the space of Radon measures. Conceptually, these methods can be split into two phases: first, the computation of a new…

最优化与控制 · 数学 2025-08-06 Arsen Hnatiuk , Daniel Walter

While considering the chameleon scalar field model with the spatially flat FLRW background, we investigate the late-time acceleration phase of the universe, wherein we apply the typical potential usually used in this model. Through setting…

广义相对论与量子宇宙学 · 物理学 2022-08-25 Raziyeh Zaregonbadi , Nasim Saba , Mehrdad Farhoudi

In this manuscript, an original numerical procedure for the nonlinear peridynamics on arbitrarily--shaped two-dimensional (2D) closed manifolds is proposed. When dealing with non parameterized 2D manifolds at the discrete scale, the problem…

Consider the Totally Asymmetric Simple Exclusion Process (TASEP) on the integer lattice $ \mathbb{Z} $. We study the functional Large Deviations of the integrated current $ \mathsf{h}(t,x) $ under the hyperbolic scaling of space and time by…

概率论 · 数学 2019-02-14 Stefano Olla , Li-Cheng Tsai

We begin a study of a multi-parameter family of Cauchy initial-value problems for the modified nonlinear Schr\"odinger equation, analyzing the solution in the semiclassical limit. We use the inverse scattering transform for this equation,…

可精确求解与可积系统 · 物理学 2012-08-09 Jeffery C. DiFranco , Peter D. Miller

We define and study one-dimensional model of irreversible aggregation of particles obeying a discrete-time kinetics which is a special limit of the generalized Totally Asymmetric Simple Exclusion Process (gTASEP) on open chains. The model…

统计力学 · 物理学 2017-05-10 Nadezhda Zh. Bunzarova , Nina Ch. Pesheva

We study the statistical properties of geodesics, i.e. paths of minimal length, in large random planar quadrangulations. We extend Schaeffer's well-labeled tree bijection to the case of quadrangulations with a marked geodesic, leading to…

数学物理 · 物理学 2008-05-15 J. Bouttier , E. Guitter

We study geodesics of the form $\gamma(t)=\pi(\exp(tX)\exp(tY))$, $X,Y\in \fr{g}=\operatorname{Lie}(G)$, in homogeneous spaces $G/K$, where $\pi:G\rightarrow G/K$ is the natural projection. These curves naturally generalise homogeneous…

微分几何 · 数学 2016-11-28 Andreas Arvanitoyeorgos , Nikolaos Panagiotis Souris

We study geodesics in generalized Wallach spaces which are expressed as orbits of products of three exponential terms. These are homogeneous spaces $M=G/K$ whose isotropy representation decomposes into a direct sum of three submodules…

微分几何 · 数学 2015-11-26 Andreas Arvanitoyeorgos , Nikolaos Panagiotis Souris

We introduce "puzzles of quasi-finite type" which are the counterparts of our subshifts of quasi-finite type (Invent. Math. 159 (2005)) in the setting of combinatorial puzzles as defined in complex dynamics. We are able to analyze these…

动力系统 · 数学 2009-09-14 Jerome Buzzi

We provide two-sided pointwise estimates and uniform asymptotics of the solutions to the subcritical quasi-geostrophic equation with initial data in $L^{2/(\alpha-1)}(\mathbb{R}^2)$. Furthermore, we give upper bound of similar type for any…

偏微分方程分析 · 数学 2018-12-31 Tomasz Jakubowski , Grzegorz Serafin

The quasigeostrophic model is a simplified geophysical fluid model at asymptotically high rotation rate or at small Rossby number. We consider the quasigeostrophic equation with dissipation under random forcing in bounded domains. We show…

动力系统 · 数学 2007-05-23 James R. Brannan , Jinqiao Duan , Thomas Wanner

We analyze the equilibrium space of an ideal gas using the formalism of geometrothermodynamics. We introduce the concept of thermodynamic geodesics to show that the equilibrium space around a particular initial state can be divided into two…

广义相对论与量子宇宙学 · 物理学 2024-10-11 Hernando Quevedo

The term 'KPZ' stands for the initials of three physicists, namely Kardar, Parisi and Zhang, which, in 1986 conjectured the existence of universal scaling behaviours for many random growth processes in the plane. A process is said to belong…

概率论 · 数学 2024-10-11 Pantelis Tassopoulos

We consider the two-species totally asymmetric simple exclusion process on $\mathbb{Z}$ with a translation-invariant stationary measure as the initial condition. We establish the asymptotic decoupling of the marginal height profiles along…

概率论 · 数学 2025-07-22 Patrik L. Ferrari , Sabrina Gernholt

A novel discrete growth model in 2+1 dimensions is presented in three equivalent formulations: i) directed motion of zigzags on a cylinder, ii) interacting interlaced TASEP layers, and iii) growing heap over 2D substrate with a restricted…

统计力学 · 物理学 2015-05-20 Mikhail Tamm , Sergei Nechaev , Satya N. Majumdar

We consider the totally asymmetric simple exclusion process on a ring with flat and step initial conditions. We assume that the size of the ring and the number of particles tend to infinity proportionally and evaluate the fluctuations of…

数学物理 · 物理学 2017-03-02 Jinho Baik , Zhipeng Liu

We study quasiisometric embeddings between finite-dimensional CAT(0) cube complexes. More specifically, we introduce geometric branching conditions under which flats in the domain, not necessarily of top rank, are mapped within finite…

群论 · 数学 2026-05-12 Shaked Bader , Oussama Bensaid , Harry Petyt

Reduction of the $\eta$-deformed sigma model on ${\rm AdS}_5 \times {\rm S}^5$ to the two-dimensional squashed sphere $({\rm S}^2)_{\eta}$ can be viewed as a special case of the Fateev sausage model where the coupling constant $\nu$ is…

高能物理 - 理论 · 物理学 2017-12-27 G. Arutyunov , M. Heinze , D. Medina-Rincon