Results 31 to 40 of about 233,661 (218)

Regular polynomial interpolation and approximation of global solutions of linear partial differential equations [PDF]

open access: yes, 2007
We consider regular polynomial interpolation algorithms on recursively defined sets of interpolation points which approximate global solutions of arbitrary well-posed systems of linear partial differential equations.
Kampen, Joerg
core   +4 more sources

Solving Parabolic Partial Delay Differential Equations Using The Explicit Method And Higher Order Differences

open access: yesJournal of Kufa for Mathematics and Computer, 2013
In this paper we use the higher order differences for second order (derivative)  in solving  parabolic partial delay differential equations by using the explicit method and we get results are more closer to the exact values than the results which can ...
Amal Khalaf Haydar
doaj   +1 more source

Rough surface backscatter and statistics via extended parabolic integral equation [PDF]

open access: yes, 2015
This paper extends the parabolic integral equation method, which is very effective for forward scattering from rough surfaces, to include backscatter.
Spivack, Mark, Spivack, Orsola Rath
core   +1 more source

Critical global asymptotics in higher-order semilinear parabolic equations

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2003
We consider a higher-order semilinear parabolic equation ut=−(−Δ)mu−g(x,u) in ℝN×ℝ+, m>1. The nonlinear term is homogeneous: g(x,su)≡|s|p−1sg(x,u) and g(sx,u)≡|s|Qg(x,u) for any s∈ℝ, with exponents P>1, and Q>−2m.
Victor A. Galaktionov
doaj   +1 more source

Pointwise two-scale expansion for parabolic equations with random coefficients [PDF]

open access: yes, 2015
We investigate the first-order correction in the homogenization of linear parabolic equations with random coefficients. In dimension $3$ and higher and for coefficients having a finite range of dependence, we prove a pointwise version of the two-scale ...
Gu, Yu, Mourrat, Jean-Christophe
core   +3 more sources

Multivalued solutions of multidimensional linear equations of heat conduction and rivertons

open access: yesИзвестия высших учебных заведений. Поволжский регион: Физико-математические науки, 2021
Background. The article considers the problem of calculating multivalued solutions of multidimensional linear parabolic equations. Solutions for this type of equations of heat conductivity in dimension d > 2 were not previously known and represent an ...
V.M. Zhuravlev, V.M. Morozov
doaj   +1 more source

Static stability of higher order functionally graded beam under variable axial load

open access: yesAlexandria Engineering Journal, 2020
This article investigates effects of axial load distribution on buckling loads and their modes of functionally graded (FG) beams including a shear effect for the first time, since all previous studies focused on constant axial load.
A. Melaibari   +3 more
doaj   +1 more source

Global attractors for a class of semilinear degenerate parabolic equations

open access: yesOpen Mathematics, 2021
In this paper, we consider the long-time behavior for a class of semi-linear degenerate parabolic equations with the nonlinearity ff satisfying the polynomial growth of arbitrary p−1p-1 order.
Zhu Kaixuan, Xie Yongqin
doaj   +1 more source

Multi-level higher order QMC Galerkin discretization for affine parametric operator equations [PDF]

open access: yes, 2014
We develop a convergence analysis of a multi-level algorithm combining higher order quasi-Monte Carlo (QMC) quadratures with general Petrov-Galerkin discretizations of countably affine parametric operator equations of elliptic and parabolic type ...
Dick, Josef   +3 more
core   +1 more source

A New Sixth-Order Finite Difference Compact Reconstruction Unequal-Sized WENO Scheme for Nonlinear Degenerate Parabolic Equations

open access: yesJournal of Mathematics, 2022
In this paper, a new sixth-order finite difference compact reconstruction unequal-sized weighted essentially nonoscillatory (CRUS-WENO) scheme is designed for solving the nonlinear degenerate parabolic equations on structured meshes.
Liang Li, Yan Zhang, Jun Zhu
doaj   +1 more source

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