Results 41 to 50 of about 43,973 (335)

Riesz potentials and nonlinear parabolic equations [PDF]

open access: yes, 2013
The spatial gradient of solutions to nonlinear degenerate parabolic equations can be pointwise estimated by the caloric Riesz potential of the right hand side datum, exactly as in the case of the heat equation.
A. Cianchi   +31 more
core   +1 more source

PERIODIC SOLUTION FOR A CLASS OF DOUBLY DEGENERATE PARABOLIC EQUATION WITH NEUMANN PROBLEM [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2015
In this article, we study the periodic solution for a class of doubly degenerate parabolic equation with nonlocal terms and Neumann boundary conditions. By using the theory of Leray-Schauder degree, we obtain the existence of nontrivial nonnegative time ...
Raad Awad Hameed, Wafaa M. Taha
doaj   +1 more source

On the convergence of a class of degenerate parabolic equations

open access: yesJournal de Mathématiques Pures et Appliquées, 1998
The authors study the convergence of the Cauchy-Dirichlet problems for a sequence of parabolic operators in the divergence form \(P_h =\frac{\partial}{\partial t} - \text{div} (a_h(x,t) D)\), as \(h\to\infty\), where \(a_h(x,t) =[a_{h,ij}(x,t)]_{i,j =1,\dots n}\) are matrices of measurable functions defined on a bounded open cylinder \(\Omega\times (0 ...
PARONETTO, FABIO, F. Serra Cassano
openaire   +5 more sources

On the Cauchy problem for a degenerate parabolic differential equation

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1998
The aim of this work is to prove the existence and the uniqueness of the solution of a degenerate parabolic equation. This is done using H. Tanabe and P.E. Sobolevsldi theory.
Ahmed El-Fiky
doaj   +1 more source

A degenerate parabolic equation in noncylindrical domains

open access: yesMathematische Annalen, 1992
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
BERTSCH, MICHIEL   +2 more
openaire   +5 more sources

The fundamental solution of Cauchy problem for a single equation of the diffusion equation with inertia

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2014
The paper found the explicit form of the fundamental solution of  Cauchy problem for the equation of Kolmogorov type that has a finite number  groups of spatial variables which are degenerate parabolic.
H.P. Malytska, I.V. Burtnyak
doaj   +1 more source

Expansion of positivity to a class of doubly nonlinear parabolic equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2022
We establish the expansion of positivity of the nonnegative, local, weak solutions to the class of doubly nonlinear parabolic equations $$\partial_t (u^{q}) -\operatorname{div}{(|D u|^{p-2} D u)}=0, \qquad\ p>1 \ \text{and} \ q>0$$ considering ...
Eurica Henriques
doaj   +1 more source

Difference schemes for degenerate parabolic equations [PDF]

open access: yesMathematics of Computation, 1986
Diagonal dominant implicit-difference schemes approximating a porous media type class of multidimensional nonlinear equations are shown to generate semigroups in an approximate L 1 {L^1} -space, and the rate of convergence to the semigroup solution in L 1
openaire   +1 more source

Convergence analysis of domain decomposition based time integrators for degenerate parabolic equations

open access: yes, 2017
Domain decomposition based time integrators allow the usage of parallel and distributed hardware, making them well-suited for the temporal discretization of parabolic systems, in general, and degenerate parabolic problems, in particular.
Eisenmann, Monika, Hansen, Eskil
core   +1 more source

Asymptotic expansions for degenerate parabolic equations

open access: yesComptes Rendus. Mathématique, 2014
Abstract We prove asymptotic convergence results for some analytical expansions of solutions to degenerate PDEs with applications to financial mathematics. In particular, we combine short-time and global-in-space error estimates, previously obtained in the uniformly parabolic case, with some a priori bounds on “short cylinders”, and we achieve short ...
PASCUCCI, ANDREA   +2 more
openaire   +3 more sources

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