搜索结果: 181-195 共查到“知识库 动力系统”相关记录396条 . 查询时间(3.657 秒)
Fundamental group of uniquely ergodic Cantor minimal systems
Fundamental group Orbit equivalence Brown’s Lemma Dynamical Systems
font style='font-size:12px;'>
2011/9/5
Abstract: We introduce the fundamental group ${\mathcal F}(\mathcal{R}_{G, \phi})$ of a uniquely ergodic Cantor minimal $G$-system $\mathcal{R}_{G, \phi}$ where $G$ is a countable discrete group. We c...
Epidemic Spread in Human Networks
Epidemic Spread Human Networks Dynamical Systems
font style='font-size:12px;'>
2011/10/8
Abstract: One of the popular dynamics on complex networks is the epidemic spreading. An epidemic model describes how infections spread throughout a network. Among the compartmental models used to desc...
Periodic solutions of o.d.e. systems with a lipchitz non linearity
Periodic solutions o.d.e. systems lipchitz non linearity
font style='font-size:12px;'>
2011/8/17
Abstract: In this report, we address differential systems with Lipschitz non linearities; this study is motivated by the subject of vibrations of structures with unilateral springs or non linear stres...
Positive automorphisms for self-induced interval exchange transformations
Positive automorphisms self-induced interval exchange transformations Dynamical Systems
font style='font-size:12px;'>
2011/9/5
Abstract: We give an algorithm to determine if the dynamical system generated by a positive automorphism of the free group can also be generated by a self-induced interval exchange transformation. The...
Divergent directions in some periodic wind-tree models
Divergent directions periodic wind-tree models Dynamical Systems
font style='font-size:12px;'>
2011/9/5
Abstract: The periodic wind-tree model is a family T(a,b) of billiards in the plane in which identical rectangular scatterers of size axb are disposed at each integer point. It was proven by P. Hubert...
Discrete conservation laws and port-Hamiltonian systems on graphs and complexes
conservation laws port-Hamiltonian systems graphs and complexes Optimization and Control
font style='font-size:12px;'>
2011/9/1
Abstract: In this paper we present a unifying geometric framework for modeling various sorts of physical network dynamics as port-Hamiltonian systems. Basic idea is to associate with the incidence mat...
Voronoi tessellations for matchbox manifolds
Voronoi tessellations Delaunay triangulations almost periodic tilings laminations solenoids matchbox manifolds
font style='font-size:12px;'>
2011/9/1
Abstract: Matchbox manifolds ${\mathfrak M}$ are a special class of foliated spaces, which includes as special examples the weak solenoids, and tiling spaces associated to aperiodic tilings with finit...
Diffusion for the periodic wind-tree model
Billiards diffusion translations surfaces Lyapunov exponents ergodic averages
font style='font-size:12px;'>
2011/8/31
Abstract: The periodic wind-tree model is an infinite billiard in the plane with identical rectangular scatterers disposed at each integer point. We prove that independently of the size of the scatter...
Periodically fighting shake, rattle and roll
Dynamical Systems Periodically rattle and roll
font style='font-size:12px;'>
2011/8/31
Abstract: How easy is it to suppress shake, rattle and roll in a long bridge or a skyscraper? Most practical structures are designed so that long wave resonance vibrations can be avoided. However, the...
Approximate Propagation of both Epistemic and Aleatory Uncertainty through Dynamic Systems
Uncertainty Propagation Epistemic Uncertainty Aleatory Uncertainty Dempster-Shafer Moment Evolution
font style='font-size:12px;'>
2011/9/29
Abstract: When ignorance due to the lack of knowledge, modeled as epistemic uncertainty using Dempster-Shafer structures on closed intervals, is present in the model parameters, a new uncertainty prop...
A Linear Programming Approach to Weak Reversibility and Linear Conjugacy of Chemical Reaction Networks
chemical kinetics stability theory weak reversibility linear programming dynamical equivalence
font style='font-size:12px;'>
2011/8/30
Abstract: A numerically effective procedure for determining weakly reversible chemical reaction networks that are linearly conjugate to a known reaction network is proposed in this paper. The method i...
Dimension spectrum for a nonconventional ergodic average
Dimension spectrum nonconventional ergodic average Dynamical Systems
font style='font-size:12px;'>
2011/8/31
Abstract: We compute the dimension spectrum of certain nonconventional averages, namely, the Hausdorff dimension of the set of $0,1$ sequences, for which the frequency of the pattern 11 in positions $...
Pull-back of currents by meromorphic maps
Currents Dominant meromorphic maps Intersection of currents Pullback of currents
font style='font-size:12px;'>
2011/8/31
Abstract: Let $X$ and $Y$ be compact Kahler manifolds, and let $f:X\rightarrow Y$ be a dominant meromorphic map. We define a pullback operator $f^{\sharp}$ (and its local version) for currents of the ...
Generic representations of abelian groups and extreme amenability
Unitary representations measure-preserving actions Urysohn space extremely amenable group Polish group Baire category
font style='font-size:12px;'>
2011/8/31
Abstract: If $G$ is a Polish group and $\Gamma$ is a countable group, denote by $\Hom(\Gamma, G)$ the space of all homomorphisms $\Gamma \to G$. We study properties of the group $\cl{\pi(\Gamma)}$ for...
Stable orbit equivalence of Bernoulli actions of free groups and isomorphism of some of their factor actions
Stable orbit equivalence Bernoulli actions isomorphism Dynamical Systems Group Theory
font style='font-size:12px;'>
2011/8/26
Abstract: We give an elementary proof for Lewis Bowen's theorem saying that two Bernoulli actions of two free groups, each having arbitrary base probability spaces, are stably orbit equivalent. Our me...