搜索结果: 46-57 共查到“理学 RANDOM WALKS”相关记录57条 . 查询时间(0.2 秒)
On the coalescence time of reversible random walks
coalescing random walks voter model hitting time
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2010/11/29
Consider a system of coalescing random walks where each individual performs ran-dom walk over a finite graph G, or (more generally) evolves according to some reversible Markov chain generator Q. Let C...
Diffusive limits for "true" (or myopic) self-avoiding random walks and self-repellent Brownian polymers in d >= 3
self-repelling random motion local time central limit theorem
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2010/11/29
The problems considered in the present paper have their roots in two different cultures. The ‘true’ (or myopic) self-avoiding walk model (TSAW) was introduced in the physics literature by Amit, Parisi...
Ballistic regime for random walks in random environment with unbounded jumps and Knudsen billiards
cosine law stochastic billiard Knudsen random wal random medium random walk in random environment unbounded
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2010/11/26
We consider a random walk in a stationary ergodic environment
in Z, with unbounded jumps. In addition to uniform ellipticity and a bound on the tails of the possible jumps, we assume a condition of s...
Weak convergence of random walks conditioned to stay away
Weak convergence walks conditioned
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2010/11/29
Let {Xn}n∈N be a sequence of i.i.d. randomvariables in Zd. Let Sk = X1 + ...+ Xk and Yn(t) be the continuous process on [0, 1] for which Yn(k/n) = Sk/√n k = 1, ..., n and which is linearly interpolate...
Excited Brownian motions as limits of excited random walks
Excited Brownian motions limits of excited random walks
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2010/12/14
We obtain the convergence in law of a sequence of excited (also called cookies) random walks toward an excited Brownian motion. This last process is a continuous semi-martingale whose drift is a funct...
First-Passage Exponents of Multiple Random Walks
First-Passage Exponents Multiple Random Walks
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2010/12/15
We investigate first-passage statistics of an ensemble of N noninteracting random walks on a line.Starting from a configuration in which all particles are located in the positive half-line, we study S...
Locally Perturbed Random Walks with Unbounded Jumps
Random walk local impurities infinite horizon weak convergence Brownian motion local limit theorem
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2010/12/8
In [17], D. Szász and A. Telcs have shown that for the diffusively scaled,simple symmetric random walk, weak convergence to the Brownian motion holds even in the case of local impurities if d ≥ 2.
Quantum random walks and minors of Hermitian Brownian motion
Quantum random walks minors of Hermitian Brownian motion
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2010/11/30
Considering quantum random walks, we construct discrete-time approximations of the eigenvalues processes of minors of Hermitian Brownian motion.
Matrix valued Szego polynomials and quantum random walks
Matrix valued Szego polynomials quantum random walks
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2010/4/8
We consider quantum random walks (QRW) on the integers, a subject that has been considered in the last few years in the framework of quantum computation. We show how the theory of CMV matrices gives a...
Some Limit Theorems for a Particle System of Single Point Catalytic Branching Random Walks
Renewal equation branching particle system scaling limit
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2007/12/10
We study the scaling limit for a catalytic branching particle system whose particles perform random walks on ${\Bbb Z}$ and can branch at 0 only. Varying the initial (finite) number of particles, we g...
Variable Survival Exponents in History-Dependent Random Walks: Hard Movable Reflector
Variable Survival Exponents History-Dependent Random Walks Hard Movable Reflector
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2010/10/28
We review recent studies demonstrating a nonuniversal (continuously variable) survival exponent for historydependent random walks, and analyze a new example, the hard movable partial reflector. These ...
Random Walks and Electric Networks
Random Walks Electric Networks
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2010/10/29
A popular account of the connection between random walks and electric networks.