Results 31 to 40 of about 554,533 (301)
, 2022 S.S75-S90We consider a Laplace operator on a random graph consisting of infinitely many loops joined symmetrically by intervals of unit length. The arc lengths of the loops are considered to be independent, identically distributed random variables.
Schrader, R., Kostrykin, V.
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Advanced Electronic Materials, 2023 Random granular media can exhibit characteristics that are often related to ordered media. In the present work, this feature is observed in the polarized Second Harmonic Generation (SHG) response from reduced iron‐doped lithium niobate (LN:Fe) powders ...
Mónica J. García‐Rodríguez +8 more
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Long Distance Energy Correlations in Random Media [PDF]
, 1983 This thesis considers the long distance motion of waves in a random medium. Using the geometrical optics approximation and a stochastic limit theorem, we find evolution equations for rays and for energy correlations, in two and three dimensions.
Zwillinger, Daniel Ian
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Quenched invariance principles for random walks and elliptic diffusions in random media with boundary [PDF]
, 2014 Via a Dirichlet form extension theorem and making full use of two-sided heat kernel estimates, we establish quenched invariance principles for random walks in random environments with a boundary.
Croydon, David A. +5 more
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Applied Sciences, 2021 In this study, the problem of the influence of a horizontally inhomogeneous liquid bottom impedance, given by random Gaussian function of the speed of sound and by density, on the propagation of low-frequency sound in a shallow-water waveguide is ...
Fengqin Zhu +2 more
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Interface Motion in Random Media [PDF]
Communications in Mathematical Physics, 2014 22 pages, 5 ...
Bodineau, T., Teixeira, A.
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Diffusion and multiplication in random media [PDF]
Journal of Statistical Mechanics: Theory and Experiment, 2011 We investigate the evolution of a population of non-interacting particles which undergo diffusion and multiplication. Diffusion is assumed to be homogeneous, while multiplication proceeds with different rates reflecting the distribution of nutrients. We focus on the situation where the distribution of nutrients is a stationary quenched random variable,
Krapivsky, P. L., Mallick, Kirone
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Scaling limit for the random walk on the largest connected component of the critical random graph [PDF]
, 2012 In this article, a scaling limit for the simple random walk on the largest connected component of the Erdos-Rényi random graph G(n,p) in the critical window, p = n−1+λn−4/3, is deduced.
Croydon, David A.
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Acoustic Wave Correlation Tomography of Time-Varying Disordered Structures
Archives of Acoustics, 2018 An original model based on first principles is constructed for the temporal correlation of acoustic waves propagating in random scattering media. The model describes the dynamics of wave fields in a previously unexplored, moderately strong (mesoscopic ...
Gregory SAMELSOHN, Saad TAPUCHI
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Modelling multi-scale microstructures with combined Boolean random sets: A practical contribution [PDF]
, 2009 Boolean random sets are versatile tools to match morphological and topological properties of real structures of materials and particulate systems. Moreover, they can be combined in any number of ways to produce an even wider range of structures that ...
Bourgeois, Florent +2 more
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