Results 11 to 20 of about 12,485 (201)

On qualitative properties of a system containing a singular parabolic functional equation

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2008
We consider a system consisting of a quasilinear parabolic equation and a first order ordinary differential equation containing functional dependence on the unknown functions. The existence and some properties of solutions in $(0,\infty )$ will be proved.
László Simon
doaj   +1 more source

Existence and stability of traveling waves in parabolic systems of differential equations with weak diffusion

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2022
The aim of the present paper is to investigate of some properties of periodic solutions of a nonlinear autonomous parabolic systems with a periodic condition.
I.I. Klevchuk
doaj   +1 more source

The nonlocal stefan problem for quasilinear parabolic equation

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2012
In this paper, we deal with free boundary problem with nonlocal boundary condition for quasilinear parabolic equation. For the solutions of the problem apriory estimates of Shauder’s type are established.
Jozil O Takhirov, Rasul N Turaev
doaj   +3 more sources

Constrained Evolution for a Quasilinear Parabolic Equation [PDF]

open access: yesJournal of Optimization Theory and Applications, 2016
In the present contribution, a feedback control law is studied for a quasilinear parabolic equation. First, we prove the well-posedness and some regularity results for the Cauchy--Neumann problem for this equation, modified by adding an extra term which is a multiple of the subdifferential of the distance function from a closed convex set K of L<sup&
P Colli, G Gilardi, J Sprekels
openaire   +6 more sources

Some results about an anisotropic -Laplace–Barenblatt equation

open access: yesAdvances in Nonlinear Analysis, 2012
We investigate the following quasilinear parabolic equation of Barenblatt type,
Giacomoni Jacques, Vallet Guy
doaj   +1 more source

On quasilinear parabolic evolution equations in weighted Lp-spaces II [PDF]

open access: yes, 2013
Our study of abstract quasi-linear parabolic problems in time-weighted L_p-spaces, begun in [17], is extended in this paper to include singular lower order terms, while keeping low initial regularity.
D. Bothe   +6 more
core   +3 more sources

Critical Exponents of Quasilinear Parabolic Equations

open access: yesJournal of Mathematical Analysis and Applications, 2002
The critical exponent for the global existence of positive solutions of the equation \[ u_t = \text{div}(|\nabla u|^{m-1}\nabla u)+t^s|x|^\sigma u^p \] in \(\mathbb R^n\) is found for \(s\geq 0\), \((n-1)/(n+1)n(1-m)-1-m-2s.\)
Qi, YW, Wang, MX
openaire   +2 more sources

Quasilinear evolution equations and parabolic systems [PDF]

open access: yesTransactions of the American Mathematical Society, 1986
It is shown that general quasilinear parabolic systems possess unique maximal classical solutions for sufficiently smooth initial values, provided the boundary conditions are “time-independent”. Moreover it is shown that, in the autonomous case, these equations generate local semiflows on appropriate Sobolev spaces. Our results apply, in particular, to
openaire   +1 more source

Computing optimal control with a quasilinear parabolic partial differential equation [PDF]

open access: yesSurveys in Mathematics and its Applications, 2009
This paper presents the numerical solution of a constrained optimal control problem (COCP) for quasilinear parabolic equations. The COCP is converted to unconstrained optimization problem (UOCP) by applying the exterior penalty function method. Necessary
M. H. Farag
doaj  

An H1-Galerkin method for a Stefan problem with a quasilinear parabolic equation in non-divergence form

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1987
Optimal error estimates in L2, H1 and H2-norm are established for a single phase Stefan problem with quasilinear parabolic equation in non-divergence form by an H1-Galerkin procedure.
A. K. Pani, P. C. Das
doaj   +1 more source

Home - About - Disclaimer - Privacy