Results 41 to 50 of about 805,112 (303)
Branching processes in random environment die slowly [PDF]
Discrete Mathematics & Theoretical Computer Science, 2008 Let $Z_n,n=0,1,\ldots,$ be a branching process evolving in the random environment generated by a sequence of iid generating functions $f_0(s),f_1(s),\ldots,$ and let $S_0=0$, $S_k=X_1+ \ldots +X_k,k \geq 1$, be the associated random walk with $X_i=\log ...
Vladimir Vatutin, Andreas Kyprianou
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Random Graphs' Robustness in Random Environment
Austrian Journal of Statistics, 2017 We consider configuration graphs the vertex degrees of which are independent and follow the power-law distribution. Random graphs dynamics takes place in a random environment with the parameter of vertex degree distribution following uniform ...
Marina Leri, Yury Pavlov
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Random walk in random environment with asymptotically zero perturbation
, 2006 We give criteria for ergodicity, transience and null recurrence for the random walk in random environment on \Z+={0,1,2,…}, with reflection at the origin, where the random environment is subject to a vanishing perturbation.
Menshikov, MV +5 more
core +1 more source
Logarithmic speeds for one-dimensional perturbed random walk in random environment
, 2007 We study the random walk in random environment on Z+ = f0; 1; 2; : : :g, where the environment is subject to a vanishing (random) perturbation. The two particular cases that we consider are: (i) random walk in random environment perturbed from Sinai's ...
Menshikov, MV +7 more
core +1 more source
Analysis of an MMAP/PH1, PH2/N/∞ queueing system operating in a random environment
International Journal of Applied Mathematics and Computer Science, 2014 A multi-server queueing system with two types of customers and an infinite buffer operating in a random environment as a model of a contact center is investigated. The arrival flow of customers is described by a marked Markovian arrival process.
Kim Chesoong +3 more
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On conditional configuration graphs with random distribution of vertex degrees
Transactions of the Karelian Research Centre of the Russian Academy of Sciences, 2016 We consider a configuration graph with N vertices. The degrees of the vertices are drawn independently from a discrete power-law distribution with positive parameter τ . They are equal to the number of each vertex’s numbered semiedges.
Yury Pavlov
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Austrian Journal of Statistics, 2023 For a continuous-time lattice random walk $X^\Lambda=\set{X^\Lambda_t,t\ge 0}$ in a random environment $\Lambda$, we study the asymptotic behavior, as $t\rightarrow \infty$, of the normalized additive functional $c_t\int_0^{t} f(X^\Lambda_s)ds$, $t\ge 0$
Georgiy Shevchenko, Andrii Yaroshevskiy
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Finite-range viscoelastic subdiffusion in disordered systems with inclusion of inertial effects
New Journal of Physics, 2020 This work justifies further paradigmatic importance of the model of viscoelastic subdiffusion in random environments for the observed subdiffusion in cellular biological systems.
Igor Goychuk, Thorsten Pöschel
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Lingering Random Walks in Random Environment on a Strip [PDF]
Communications in Mathematical Physics, 2007 We consider a recurrent random walk (RW) in random environment (RE) on a strip. We prove that if the RE is i. i. d. and its distribution is not supported by an algebraic subsurface in the space of parameters defining the RE then the RW exhibits the (log t)2 asymptotic behaviour. The exceptional algebraic subsurface is described by an explicit system of
Bolthausen, E, Goldsheid, I
openaire +3 more sources
FEBS Letters, EarlyView.The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li +2 more
wiley +1 more source