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相关论文: A complete convergence theorem for voter model per…

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The q-voter model is a spin-flip system in which the rate of flipping to type i is given by the qth power of the proportion of nearest neighbours in type i for $i=0,1$. If $q=1$ it reduces to the classical voter model. We show that in the…

概率论 · 数学 2023-11-27 Ted Cox , Ed Perkins

We show that a sequence of stochastic spatial Lotka-Volterra models, suitably rescaled in space and time, converges weakly to super-Brownian motion with drift. The result includes both long range and nearest neighbor models, the latter for…

概率论 · 数学 2007-05-23 J. Theodore Cox , Edwin A. Perkins

Recently, it has been shown that stochastic spatial Lotka-Volterra models when suitably rescaled can converge to a super Brownian motion. We show that the limit process could be a super stable process if the kernel of the underlying motion…

概率论 · 数学 2009-02-05 Hui He

Q-conditional symmetries of the classical Lotka-Volterra system in the case of one space variable are completely described and a set of such symmetries in explicit form is constructed. The relevant non-Lie ans\"atze to reduce the classical…

数学物理 · 物理学 2019-09-17 Roman Cherniha , Vasyl' Davydovych

The main purpose of this paper is to give a vector lattice version of a Theorem by Burkholder about convergence of martingales. The proof is based on a vector lattice analogue of Austin's sample function theorem, proved recently by Grobler,…

泛函分析 · 数学 2021-04-12 Youssef Azouzi , Kawtar Ramdane

A model of population genetics of the Lotka-Volterra type with mutations on a statistical manifold is introduced. Mutations in the model are described by diffusion on a statistical manifold with a generator in the form of a Laplace-Beltrami…

种群与进化 · 定量生物学 2024-03-01 S. V. Kozyrev

The symmetric exclusion process and the voter model are two interacting particle systems for which a dual finite particle system allows one to characterize its invariant measures. Adding spontaneous births and deaths to the two processes…

概率论 · 数学 2007-05-23 Paul Jung

We study the scaling limit of a large class of voter model perturbations in one dimension, including stochastic Potts models, to a universal limiting object, the continuum voter model perturbation. The perturbations can be described in…

概率论 · 数学 2016-07-21 C. M. Newman , K. Ravishankar , E. Schertzer

An exact spectral analysis of the Markov Propagator for the Voter model is presented for the complete graph, and extended to the complete bipartite graph and uncorrelated random networks. Using a well-defined Martingale approximation in…

概率论 · 数学 2015-07-16 William Pickering , Chjan Lim

Making use of a recent result of Borchers, an algebraic version of the Bisognano-Wichmann theorem is given for conformal quantum field theories, i.e. the Tomita-Takesaki modular group associated with the von Neumann algebra of a wedge…

funct-an · 数学 2011-04-06 R. Brunetti , D. Guido , R. Longo

We describe a generalization of the voter model on complex networks that encompasses different sources of degree-related heterogeneity and that is amenable to direct analytical solution by applying the standard methods of heterogeneous…

物理与社会 · 物理学 2012-06-15 Paolo Moretti , Andrea Baronchelli , Michele Starnini , Romualdo Pastor-Satorras

In elections, the vote shares or turnout rates show a strong spatial correlation. The logarithmic decay with distance suggests that a 2D noisy diffusive equation describes the system. Based on the study of U.S. presidential elections data,…

物理与社会 · 物理学 2019-05-29 Shintaro Mori , Masato Hisakado , Kazuaki Nakayama

The introduction of intermediate states in the dynamics of the voter model modifies the ordering process and restores an effective surface tension. The logarithmic coarsening of the conventional voter model in two dimensions is eliminated…

统计力学 · 物理学 2009-11-13 Luca Dall'Asta , Tobias Galla

We study the \'etale cohomology of Hilbert modular varieties, building on the methods introduced for unitary Shimura varieties in [CS17, CS19]. We obtain the analogous vanishing theorem: in the "generic" case, the cohomology with torsion…

数论 · 数学 2023-06-16 Ana Caraiani , Matteo Tamiozzo

We examine the algebraic complete integrability of Lotka-Volterra equations in three dimensions. We restrict our attention to Lotka-Volterra systems defined by a skew symmetric matrix. We obtain a complete classification of such systems.…

动力系统 · 数学 2009-09-22 Kyriacos Constandinides , Pantelis A. Damianou

We prove a general vanishing theorem for the cohomology of products of symmetric and skew-symmetric powers of an ample vector bundle on a smooth complex projective variety. Special cases include an extension of classical theorems of…

alg-geom · 数学 2009-10-28 Laurent Manivel

This paper studies variations of the usual voter model that favor types that are locally less common. Such models are dual to certain systems of branching annihilating random walks that are parity preserving. For both the voter models and…

概率论 · 数学 2009-09-29 Anja Sturm , Jan Swart

This paper is concerned with the existence of traveling wave solutions for diffusive two-species Lotka-Volterra systems with delay in both the reaction and diffusion terms without monotonicity. We extend the partial or cross monotone…

偏微分方程分析 · 数学 2023-03-21 William Barker

We present new results on optimization problems where the involved functions are evenly convex. By means of a generalized conjugation scheme and the perturbation theory introduced by Rockafellar, we propose an alternative dual problem for a…

最优化与控制 · 数学 2020-08-31 Maria Dolores Fajardo , Sorin-Mihai Grad , Jose Vidal

This work is concerned with the existence of entire solutions of the diffusive Lotka-Volterra competition system \begin{equation}\label{eq:abstract} \begin{cases} u_{t}= u_{xx} + u(1-u-av), & \qquad \ x\in\mathbb{R} \cr v_{t}= d v_{xx}+…

偏微分方程分析 · 数学 2020-02-04 King-Yeung Lam , Rachidi B. Salako , Qiliang Wu
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