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Chance constrained optimization problems allow to model problems where constraints involving stochastic components should only be violated with a small probability. Evolutionary algorithms have been applied to this scenario and shown to…

神经与进化计算 · 计算机科学 2024-08-23 Frank Neumann , Carsten Witt

In this paper, we present an equivalent convex optimization formulation for discrete-time stochastic linear systems subject to linear chance constraints, alongside a tight convex relaxation for quadratic chance constraints. By lifting the…

系统与控制 · 电气工程与系统科学 2026-03-23 Tanmay Dokania , Yashwanth Kumar Nakka

Let $\Psi_n$ be a product of $n$ independent, identically distributed random matrices $M$, with the properties that $\Psi_n$ is bounded in $n$, and that $M$ has a deterministic (constant) invariant vector. Assuming that the probability of…

概率论 · 数学 2008-02-29 Laurent Bruneau , Alain Joye , Marco Merkli

We study the probability of fixation in a stochastic two-species competition model. By identifying a naturally occurring fast timescale, we derive an approximation to the associated backward Kolmogorov equation that allows us to obtain an…

种群与进化 · 定量生物学 2020-09-04 Glenn Young , Andrew Belmonte

We establish pathwise continuity properties of solutions to a stochastic Volterra equation with an additive noise term given by a local martingale. The deterministic part is governed by an operator with an $H^\infty$-calculus and a scalar…

概率论 · 数学 2016-08-10 Roland Schnaubelt , Mark Veraar

In this paper we define a discrete dynamical system that governs the evolution of a population of agents. From the dynamical system, a variant of Differential Evolution is derived. It is then demonstrated that, under some assumptions on the…

计算工程、金融与科学 · 计算机科学 2016-11-17 Massimiliano Vasile , Edmondo Minisci , Marco Locatelli

We present criteria for statistical stability of attracting sets for vector fields using dynamical conditions on the corresponding generated flows. These conditions are easily verified for all singular-hyperbolic attracting sets of $C^2$…

动力系统 · 数学 2021-03-04 Vitor Araujo

For a class of Fibonacci-like unimodal maps, the restriction to the $\omega$-limit set of the unique turning point defines a minimal Cantor system. We construct these Cantor sets geometrically using a nested sequence of finite covers with a…

动力系统 · 数学 2026-02-26 Jorge Olivares-Vinales , Semin Yoo

We continue development of the theory of Markov systems initiated in \cite{Wer1}. In this paper, we introduce fundamental Markov systems associated with random dynamical systems and show that the proof of the uniqueness and empiricalness of…

概率论 · 数学 2009-02-09 Ivan Werner

A large class of real $3$-dimensional nilpotent polynomial vector fields of arbitrary degree is considered. The aim of this work is to present general properties of the discrete and continuous dynamical systems induced by these vector…

动力系统 · 数学 2022-09-16 Álvaro Castañeda , Salomón Rebollo-Perdomo

The Douglas-Rachford algorithm can be represented as the fixed point iteration of a firmly nonexpansive operator. When the operator has no fixed points, the algorithm's iterates diverge, but the difference between consecutive iterates…

最优化与控制 · 数学 2021-02-15 Goran Banjac

We consider a class of stochastic dynamical systems, called piecewise deterministic Markov processes, with states $(x, \s)\in \O\times \G$, $\O$ being a region in $\bbR^d$ or the $d$--dimensional torus, $\G$ being a finite set. The…

统计力学 · 物理学 2009-02-25 Alessandra Faggionato , Davide Gabrielli , Marco Ribezzi Crivellari

We investigate the traveling front solutions of a nonlocal Lotka Volterra system to illustrate the outcome of the competition between two species. The existence of the front solution is obtained through a new monotone iteration scheme, the…

动力系统 · 数学 2013-06-24 Xiaojie hou , Biao Wang , Zhence Zhang

We consider the problem of joint estimation of the parameters of $m$ linear dynamical systems, given access to single realizations of their respective trajectories, each of length $T$. The linear systems are assumed to reside on the nodes…

统计理论 · 数学 2026-01-26 Claire Donnat , Olga Klopp , Hemant Tyagi

This paper investigates the contact structures and dynamics of stochastic vector bundles, leading to the formulation of the least constraint theorem. It is found that the probability space of stochastic vector bundles possesses an…

数学物理 · 物理学 2024-12-30 D. Y. Zhong , G. Q. Wang

Cyclic dominance of species has been identified as a potential mechanism to maintain biodiversity, see e.g. B. Kerr, M. A. Riley, M. W. Feldman and B. J. M. Bohannan [Nature {\bf 418}, 171 (2002)] and B. Kirkup and M. A. Riley [Nature {\bf…

种群与进化 · 定量生物学 2007-05-23 Tobias Reichenbach , Mauro Mobilia , Erwin Frey

In this second part of the series, we investigate the uniqueness of positive fixed points of the Poincare map associated with the 3-dimensional Lotka-Volterra competition model with seasonal succession. Building on our first part of the…

动力系统 · 数学 2026-05-05 Lei Niu , Yi Wang , Xizhuang Xie

We show that spatial extensions of many-species population dynamics models, such as the Lotka-Volterra model with random interactions we focus on in this work, generically exhibit scale-free correlation functions of population sizes in the…

统计力学 · 物理学 2025-12-09 Thibaut Arnoulx de Pirey

We study species abundance in the empirical plant-pollinator mutualistic networks exhibiting broad degree distributions, with uniform intra-group competition assumed, by the Lotka-Volterra equation. The stability of a fixed point is found…

种群与进化 · 定量生物学 2022-01-25 Hyun Woo Lee , Jae Woo Lee , Deok-Sun Lee

In this work we consider a simple, approximate, tending toward exact, solution of the system of two usual Lotka-Volterra differential equations. Given solution is obtained by an iterative method. In any finite approximation order of this…

定量方法 · 定量生物学 2007-05-23 Vladan Pankovic , Banjac Dejan , Rade Glavatovic , Milan Predojevic