Results 61 to 70 of about 12,475 (200)

Large deviations for quasilinear parabolic stochastic partial differential equations

open access: yes, 2019
In this paper, we establish the Freidlin-Wentzell's large deviations for quasilinear parabolic stochastic partial differential equations with multiplicative noise, which are neither monotone nor locally monotone.
Dong, Zhao   +2 more
core   +1 more source

Resonance and Quasilinear Parabolic Partial Differential Equations

open access: yesJournal of Differential Equations, 1993
For a certain quasilinear parabolic equation, the authors prove the existence of a weak periodic solution in an adequate Hilbert space under both resonance and nonresonance conditions. The results are obtained by using a Galerkin-type technique.
Lefton, L.E., Shapiro, V.L.
openaire   +2 more sources

Regularizations of forward‐backward parabolic PDEs

open access: yesGAMM-Mitteilungen, Volume 47, Issue 4, November 2024.
Abstract Forward‐backward parabolic equations have been studied since the 1980s, but a mathematically rigorous picture is still far from being established. As quite a number of new papers have appeared recently, we review in this work the current state of the art.
Carina Geldhauser
wiley   +1 more source

Degenerate parabolic stochastic partial differential equations: Quasilinear case

open access: yesThe Annals of Probability, 2016
Published at http://dx.doi.org/10.1214/15-AOP1013 in the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org).
Debussche, Arnaud   +2 more
openaire   +5 more sources

Codimension two mean curvature flow of entire graphs

open access: yesJournal of the London Mathematical Society, Volume 110, Issue 5, November 2024.
Abstract We consider the graphical mean curvature flow of maps f:Rm→Rn$\mathbf {f}:{\mathbb {R}^{m}}\rightarrow {\mathbb {R}^{n}}$, m⩾2$m\geqslant 2$, and derive estimates on the growth rates of the evolved graphs, based on a new version of the maximum principle for properly immersed submanifolds that extends the well‐known maximum principle of Ecker ...
Andreas Savas Halilaj, Knut Smoczyk
wiley   +1 more source

On the Cauchy Problem of a Quasilinear Degenerate Parabolic Equation

open access: yesDiscrete Dynamics in Nature and Society, 2009
By Oleinik's line method, we study the existence and the uniqueness of the classical solution of the Cauchy problem for the following equation in [0,T]×R2: ∂xxu+u∂yu−∂tu=f(⋅,u), provided that T is suitable small.
Zongqi Liang, Huashui Zhan
doaj   +1 more source

Simultaneous identification of diffusion and absorption coefficients in a quasilinear elliptic problem

open access: yes, 2013
In this work we consider the identifiability of two coefficients $a(u)$ and $c(x)$ in a quasilinear elliptic partial differential equation from observation of the Dirichlet-to-Neumann map.
Egger, Herbert   +2 more
core   +1 more source

Understanding Coherent Turbulence and the Roll‐Cell Transition With Lagrangian Coherent Structures and Frame‐Indifferent Fluxes

open access: yesJournal of Geophysical Research: Atmospheres, Volume 129, Issue 18, 28 September 2024.
Abstract We present the first analysis of frame‐indifferent (objective) fluxes and material vortices in Large Eddy Simulations of atmospheric boundary layer turbulence. We extract rotating fluid features that maintain structural coherence over time for near‐neutral, transitional, and convective boundary layers.
Nikolas Aksamit   +2 more
wiley   +1 more source

Weak solutions for nonlocal evolution variational inequalities involving gradient constraints and variable exponent

open access: yesElectronic Journal of Differential Equations, 2013
In this article, we study a class of nonlocal quasilinear parabolic variational inequality involving $p(x)$-Laplacian operator and gradient constraint on a bounded domain.
Mingqi Xiang, Yongqiang Fu
doaj  

Maximum principle for the weak solutions of the Cauchy problem for the fourth‐order hyperbolic equations

open access: yesPAMM, Volume 24, Issue 1, June 2024.
Abstract We investigate the maximum principle for the weak solutions to the Cauchy problem for the hyperbolic fourth‐order linear equations with constant complex coefficients in the plane bounded domain.
Kateryna Buryachenko
wiley   +1 more source

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