On a Generalization of One-Dimensional Kinetics

One-dimensional random walks with a constant velocity between scattering are considered. The exact solution is expressed in terms of multiple convolutions of path-distributions assumed to be different for positive and negative directions of the walk axis. Several special cases are considered when th...

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Main Authors: Vladimir V. Uchaikin, Renat T. Sibatov, Dmitry N. Bezbatko
Format: Article
Language:English
Published: MDPI AG 2021-05-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/9/11/1264
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author Vladimir V. Uchaikin
Renat T. Sibatov
Dmitry N. Bezbatko
author_facet Vladimir V. Uchaikin
Renat T. Sibatov
Dmitry N. Bezbatko
author_sort Vladimir V. Uchaikin
collection DOAJ
description One-dimensional random walks with a constant velocity between scattering are considered. The exact solution is expressed in terms of multiple convolutions of path-distributions assumed to be different for positive and negative directions of the walk axis. Several special cases are considered when the convolutions are expressed in explicit form. As a particular case, the solution of A. S. Monin for a symmetric random walk with exponential path distribution and its generalization to the asymmetric case are obtained. Solution of fractional telegraph equation with the fractional material derivative is presented. Asymptotic behavior of its solution for an asymmetric case is provided.
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spelling doaj.art-a94c863e559843b19b6383f470d486492023-11-21T22:17:58ZengMDPI AGMathematics2227-73902021-05-01911126410.3390/math9111264On a Generalization of One-Dimensional KineticsVladimir V. Uchaikin0Renat T. Sibatov1Dmitry N. Bezbatko2Department of Theoretical Physics, Ulyanovsk State University, Ulyanovsk 432017, RussiaMoscow Institute of Physics and Technology, Moscow 141701, RussiaDepartment of Theoretical Physics, Ulyanovsk State University, Ulyanovsk 432017, RussiaOne-dimensional random walks with a constant velocity between scattering are considered. The exact solution is expressed in terms of multiple convolutions of path-distributions assumed to be different for positive and negative directions of the walk axis. Several special cases are considered when the convolutions are expressed in explicit form. As a particular case, the solution of A. S. Monin for a symmetric random walk with exponential path distribution and its generalization to the asymmetric case are obtained. Solution of fractional telegraph equation with the fractional material derivative is presented. Asymptotic behavior of its solution for an asymmetric case is provided.https://www.mdpi.com/2227-7390/9/11/1264random walktelegraph equationfractional material derivativeMonte Carlo simulation
spellingShingle Vladimir V. Uchaikin
Renat T. Sibatov
Dmitry N. Bezbatko
On a Generalization of One-Dimensional Kinetics
Mathematics
random walk
telegraph equation
fractional material derivative
Monte Carlo simulation
title On a Generalization of One-Dimensional Kinetics
title_full On a Generalization of One-Dimensional Kinetics
title_fullStr On a Generalization of One-Dimensional Kinetics
title_full_unstemmed On a Generalization of One-Dimensional Kinetics
title_short On a Generalization of One-Dimensional Kinetics
title_sort on a generalization of one dimensional kinetics
topic random walk
telegraph equation
fractional material derivative
Monte Carlo simulation
url https://www.mdpi.com/2227-7390/9/11/1264
work_keys_str_mv AT vladimirvuchaikin onageneralizationofonedimensionalkinetics
AT renattsibatov onageneralizationofonedimensionalkinetics
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