Results 31 to 40 of about 1,932,245 (293)
On random walks and switched random walks on homogeneous spaces
Combinatorics, Probability and Computing, 2022 AbstractWe prove new mixing rate estimates for the random walks on homogeneous spaces determined by a probability distribution on a finite group$G$. We introduce the switched random walk determined by a finite set of probability distributions on$G$, prove that its long-term behaviour is determined by the Fourier joint spectral radius of the ...
Elvira Moreno, Mauricio Velasco
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RAM. Revista de Administração Mackenzie, 2021 Purpose: This research examines the superiority of analysts over random walk models in forecasting the results of publicly-traded Brazilian companies in the short and long term. Originality/value: The literature indicates the uncontested superiority
Rafael C. Gatsios +3 more
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Random walks on the random graph [PDF]
The Annals of Probability, 2018 We study random walks on the giant component of the Erdős–Rényi random graph G(n,p) where p=λ/n for λ>1 fixed. The mixing time from a worst starting point was shown by Fountoulakis and Reed, and independently by Benjamini, Kozma and Wormald, to have order log2n.
Berestycki, Nathanaël +3 more
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Random Walks with Invariant Loop Probabilities: Stereographic Random Walks [PDF]
Entropy, 2021 Random walks with invariant loop probabilities comprise a wide family of Markov processes with site-dependent, one-step transition probabilities. The whole family, which includes the simple random walk, emerges from geometric considerations related to the stereographic projection of an underlying geometry into a line.
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Random walk over a hypersphere
International Journal of Mathematics and Mathematical Sciences, 1985 In a recent paper the author had shown that a special case of S. M. Joshi transform (so named after the author's reverent father) of distributions (Sba f)(x)=〈f(y), lFl(a0;b0;ixy) lFl(a;b;−2ixy)〉 is a characteristic function of a spherical ...
J. M. C. Joshi
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Strategies and first-absorption times in the random walk game [PDF]
Известия высших учебных заведений: Прикладная нелинейная динамика, 2023 Purpose of this work is to determine the average time to reach the boundaries, as well as to identify the strategy in the game between two players, controlling point movements on the finite square lattice using an independent choice of strategies.
Krivonosov, Mikhail Igorevich +1 more
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Critical dimensions for random walks on random-walk chains [PDF]
Physical Review E, 1996 The probability distribution of random walks on linear structures generated by random walks in $d$-dimensional space, $P_d(r,t)$, is analytically studied for the case $ξ\equiv r/t^{1/4}\ll1$. It is shown to obey the scaling form $P_d(r,t)=ρ(r) t^{-1/2} ξ^{-2} f_d(ξ)$, where $ρ(r)\sim r^{2-d}$ is the density of the chain. Expanding $f_d(ξ)$ in powers of
Rabinovich S. +3 more
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Annales Henri Lebesgue, 2022 In this article we define and study a stochastic process on Galoisian covers of compact manifolds. The successive positions of the process are defined recursively by picking a point uniformly in the Dirichlet domain of the previous one.
Boulanger, Adrien, Glorieux, Olivier
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Identifying diseases-related metabolites using random walk
BMC Bioinformatics, 2018 Background Metabolites disrupted by abnormal state of human body are deemed as the effect of diseases. In comparison with the cause of diseases like genes, these markers are easier to be captured for the prevention and diagnosis of metabolic diseases ...
Yang Hu +5 more
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Angular asymptotics for multi-dimensional non-homogeneous random walks with asymptotically zero drift [PDF]
, 2010 We study the rst exit time from an arbitrary cone with apex at the origin by a non-homogeneous random walk (Markov chain) on Zd (d 2) with mean drift that is asymptotically zero.
MacPhee, I.M. +2 more
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