Zobrazeno 1 - 10
of 74
pro vyhledávání: '"Ashok Puri"'
Autor:
David Rossmanith, Ashok Puri
Publikováno v:
Evolution Equations and Control Theory. 5:463-474
In order to gain a better understanding of the behavior of finite-amplitude acoustic waves under a Brinkman-based poroacoustic model, we make use of approximations and transformations to recast our model equation into the damped Burgers equation. We
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ca8b5452d2f9ccef05010b5fdc20732
https://doi.org/10.3934/eect.2016014
https://doi.org/10.3934/eect.2016014
Autor:
David Rossmanith, Ashok Puri
Publikováno v:
International Journal of Non-Linear Mechanics. 78:53-58
Through numerical analyses, we study the roles of Brinkman viscosity, the Darcy coefficient, and the coefficient of non-linearity on the evolution of finite amplitude harmonic waves. An investigation of acoustic blow-ups is conducted, showing that an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::399cf7b71da7d6107cf3b4feb6d9f2b0
https://doi.org/10.1016/j.ijnonlinmec.2015.09.014
https://doi.org/10.1016/j.ijnonlinmec.2015.09.014
Autor:
David Rossmanith, Ashok Puri
Publikováno v:
International Journal of Non-Linear Mechanics. 67:1-6
Through perturbation analysis, we study the role of Brinkman viscosity in the propagation of finite amplitude harmonic waves. Interplay between various parameters, namely frequency, Reynolds number and beta, is investigated. For systems with physical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74a08f0a126332f27a9e5e8946db36ed
https://doi.org/10.1016/j.ijnonlinmec.2014.07.002
https://doi.org/10.1016/j.ijnonlinmec.2014.07.002
Publikováno v:
International Journal of Computer Mathematics. 91:2199-2214
Departing from a system of parabolic partial differential equations that describes the interaction of a microbial colony and a substrate of nutrients, we propose a finite-difference discretization to approximate the bounded and non-negative solutions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d6b045867e944e437de098088eb7af3
https://doi.org/10.1080/00207160.2013.870661
https://doi.org/10.1080/00207160.2013.870661
Autor:
John William Eslick, Ashok Puri
Publikováno v:
International Journal of Non-Linear Mechanics. 47:18-28
In this paper, we study the evolution of pressure waves propagating in a region of gas combustion subject to a time-harmonic signal at the boundary. The problem is modeled by a non-linear, hyperbolic partial differential equation. Steady-state behavi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf36dc17280347e31074943da0202afb
https://doi.org/10.1016/j.ijnonlinmec.2011.11.007
https://doi.org/10.1016/j.ijnonlinmec.2011.11.007
Autor:
Ashok Puri, Jorge Eduardo Macías-Díaz
Publikováno v:
Applied Mathematics and Computation. 218:5829-5837
In this work, we introduce a family of explicit finite-difference schemes to approximate positive solutions of the classical Fisher–Kolmogorov–Petrovsky–Piscounov equation from population dynamics. A Neumann stability analysis reveals that our
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bac32c485aac24dd8726694fc585dddf
https://doi.org/10.1016/j.amc.2011.11.064
https://doi.org/10.1016/j.amc.2011.11.064
Autor:
Jorge Eduardo Macías-Díaz, Ashok Puri
Publikováno v:
International Journal of Computer Mathematics. 88:3308-3323
We introduce non-standard, finite-difference schemes to approximate nonnegative solutions of a weakly hyperbolic (that is, a hyperbolic partial differential equation in which the second-order time-derivative is multiplied by a relatively small positi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::88144e66b1ba5d4a3322f97dd01081a5
https://doi.org/10.1080/00207160.2011.592939
https://doi.org/10.1080/00207160.2011.592939
Autor:
Ashok Puri, Jorge Eduardo Macías-Díaz
Publikováno v:
Applied Numerical Mathematics. 60:934-948
In this work, we present a non-standard finite-difference scheme to approximate solutions of a damped, hyperbolic partial differential equation with nonlinear reaction which follows a generalized logistic form. Our mathematical model is a hyperbolic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e926fefddec1d10ee9da8c9f7e30291
https://doi.org/10.1016/j.apnum.2010.05.008
https://doi.org/10.1016/j.apnum.2010.05.008
Autor:
Ashok Puri, Jorge Eduardo Macías-Díaz
Publikováno v:
Physics Letters A. 372:5004-5010
In this work, we use supratransmission and infratransmission in the mathematical modeling of the propagation of digital signals in weakly damped, discrete Josephson-junction arrays, using energy-based detection criteria. Our results show an efficient
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::baeb920c00564c52793329301ac97e49
https://doi.org/10.1016/j.physleta.2008.05.049
https://doi.org/10.1016/j.physleta.2008.05.049
Autor:
Ashok Puri, Pedro M. Jordan
Publikováno v:
Physics Letters A. 361:529-533
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f38008638e2634372c3a4cffe0f43b4a
https://doi.org/10.1016/j.physleta.2006.09.092
https://doi.org/10.1016/j.physleta.2006.09.092