Results 31 to 40 of about 2,103 (63)

The Zero Number Diminishing Property under General Boundary Conditions

open access: yes, 2019
The so-called {\it zero number diminishing property} (or {\it zero number argument}) is a powerful tool in qualitative studies of one dimensional parabolic equations, which says that, under the zero- or non-zero-Dirichlet boundary conditions, the number ...
Lou, Bendong
core   +1 more source

Global well-posedness for the 2 D quasi-geostrophic equation in a critical Besov space [PDF]

open access: yes, 2006
We show that the the 2 D quasi-geostrophic equation has global and unique strong solution, when the (large) data belongs in the critical, scale invariant space $\dot{B}^{2-2\al}_{2, \infty}\cap L^{2/(2\al-1)}$
Stefanov, Atanas
core   +3 more sources

Stability of spectral eigenspaces in nonlinear Schrodinger equations

open access: yes, 2006
We consider the time-dependent non linear Schrodinger equations with a double well potential in dimensions d =1 and d=2. We prove, in the semiclassical limit, that the finite dimensional eigenspace associated to the lowest two eigenvalues of the linear ...
Bambusi, Dario, Sacchetti, Andrea
core   +2 more sources

Existence and nonexistence of global solutions of degenerate and singular parabolic systems

open access: yes, 2000
Abstract and Applied Analysis, Volume 5, Issue 4, Page 265-284, 2000.
Gabriella Caristi
wiley   +1 more source

A waiting time phenomenon for thin film equations [PDF]

open access: yes, 2001
We prove the occurrence of a waiting time phenomenon for solutions to fourth order degenerate parabolic differential equations which model the evolution of thin films of viscous fluids.
G. GRUEN   +2 more
core  

Self-propagating High temperature Synthesis (SHS) in the high activation energy regime [PDF]

open access: yes, 2005
We derive the precise limit of SHS in the high activation energy scaling suggested by B.J. Matkowksy-G.I. Sivashinsky in 1978 and by A. Bayliss-B.J. Matkowksy-A.P. Aldushin in 2002. In the time-increasing case the limit turns out to be the Stefan problem
Monneau, Regis, Weiss, G. S.
core   +1 more source

Optimal coupling for mean field limits

open access: yes, 2009
We review recent quantitative results on the approximation of mean field diffusion equations by large systems of interacting particles, obtained by optimal coupling methods.
Bolley, François
core  

Well-posedness of a porous medium flow with fractional pressure in Sobolev spaces

open access: yes, 2016
The nonnegative solution for a linear degenerate diffusion transport eqution is proved. As a result, we show the existence and uniqueness of the solution for the fractional porous medium equation in Sobolev spaces $H^\alpha$ with nonnegative initial data,
Xiao, Weiliang, Zhou, Xuhuan
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

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