Results 81 to 90 of about 200 (160)

Asymptotic behavior of type I blowup solutions to a parabolic-elliptic system of drift-diffusion type [PDF]

open access: yes, 2010
A Cauchy problem for a parabolic-elliptic system of drift-di usion type is considered. The problem is formally of the form Ut = r (rU Ur( ) 1U): This system describes a mass-conserving aggregation phenomenon including gravitational collapse and ...
Yoshikazu, Giga   +2 more
core   +1 more source

Harnack's inequality for doubly nonlinear equations of slow diffusion type. [PDF]

open access: yesCalc Var Partial Differ Equ, 2021
Bögelein V   +3 more
europepmc   +1 more source

A General Approach to Stability in Free Boundary Problems

open access: yes, 2000
Every solution of a linear elliptic equation on a bounded domain may be considered as an equilibrium of a free boundary problem. The free boundary problem consists of the corresponding parabolic equation on a variable unknown domain with free boundary ...
Alessandra Lunardi   +10 more
core   +1 more source

Approximations to precisely localized supports of solutions for non-linear parabolic p-Laplacian problems

open access: yesDemonstratio Mathematica
The shrinking of support in non-linear parabolic pp-Laplacian equations with a positive initial condition u0{u}_{0} that decayed as ∣x∣→∞| x| \to \infty was explored in the Cauchy problem.
Jeli Roqia Abdullah
doaj   +1 more source

A parabolic quasi-variational inequality arising in a superconductivity model [PDF]

open access: yes, 2000
35K85 (primary), 35K55, 35R35 (secondary)We consider the existence of solutions for a parabolic quasilinear problem with a gradient constraint which threshold depends on the solution itself. The problem may be considered as a quasi-variational inequality
Rodrigues, José Francisco, Santos, Lisa
core  

© Hindawi Publishing Corp. REMARKS ON NONLINEAR BIHARMONIC EVOLUTION EQUATION OF KIRCHHOFF TYPE IN NONCYLINDRICAL DOMAIN

open access: yes, 2002
We investigate a boundary value problem for a nonlinear evolution biharmonic operator motivated by flexion of fully clamped beam in two different physical situations. In the first, the supports of the ends of the beam are fixed and in the second one, the
L. A. Medeiros, H. R. Clark, J. Límaco
core  

Threshold results of blow-up solutions to Kirchhoff equations with variable sources

open access: yes
This paper analyzes an initial boundary value problem for variable source Kirchhoff-type parabolic equations. We aim to derive a new sub-critical energy threshold for finite-time blow-up, a new blow-up condition, and estimates for lifespan and upper ...
RAHMOUNE, Abita, TOUIL, Nadji
core   +1 more source

Non-homogeneous fully nonlinear contracting flows of convex hypersurfaces

open access: yesAdvanced Nonlinear Studies
We consider a general class of non-homogeneous contracting flows of convex hypersurfaces in Rn+1 ${\mathbb{R}}^{n+1}$ , and prove the existence and regularity of the flow before extincting to a point in finite time.
Guan Pengfei, Huang Jiuzhou, Liu Jiawei
doaj   +1 more source

On a class of fully nonlinear parabolic equations

open access: yesAdvances in Nonlinear Analysis, 2016
We study the homogeneous Dirichlet problem for the fully nonlinear ...
Antontsev Stanislav, Shmarev Sergey
doaj   +1 more source

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