Results 71 to 80 of about 117 (113)

A free boundary model for transport-induced neurite growth

open access: yesEuropean Journal of Applied Mathematics
We introduce a free boundary model to study the effect of vesicle transport onto neurite growth. It consists of systems of drift-diffusion equations describing the evolution of the density of antero- and retrograde vesicles in each neurite coupled to ...
Greta Marino   +2 more
doaj   +1 more source

A transport formulation of moving fronts and application to dislocations dynamics

open access: yes, 2007
In this article, we consider hypersurfaces moving with normal velocity depending on the timespace coordinates and on the normal to the hypersurface. We naturally define a measure associated to this hypersurface.
R. Monneau
core  

Second-Order Phase Field Asymptotics For Unequal Conductivities

open access: yes, 2007
. We extend Karma and Rappel's improved asymptotic analysis of the phase field model to different diffusivities in solid and liquid. We consider both second-order "classical" asymptotics, in which the interface thickness is taken much ...
Robert F. Almgren
core  

LOCAL SET APPROXIMATION: MATTILA–VUORINEN TYPE SETS, REIFENBERG TYPE SETS, AND TANGENT SETS

open access: yes, 2014
We investigate the interplay between the local and asymptotic geometry of a set A ⊆ Rn and the geometry of model sets S ⊂ P(Rn), which approximate A locally uniformly on small scales.
Matthew Badger, Stephen Lewis
core  

On the Dissolution-Growth Process of a Grain: Large Time Behavior and Special Solutions.

open access: yes, 2007
: We study here the large time behavior of the radius R(t) of a spherical grain in a dilute solution of the same substance. The evolution in time of the grain is governed by a reaction-diffusion process in the liquid phase and by a dissolution/accretion ...
Fran Coise, Thomas I. Seidman
core  

Classical Solutions of Multi-Dimensional Hele-Shaw Models

open access: yes, 1997
. Existence and uniqueness of classical solutions for the multi-dimensional expanding Hele-Shaw problem is proved. Key words. Classical solutions, Hele-Shaw model, moving boundary problem, maximal regularity. AMS subject classifications. 35R35, 35K55,
Joachim Escher, Gieri Simonett
core  

MODELLING AND ANALYSIS OF DROPLET MOTION ON A PLANE

open access: yes
Slow motion of droplets on nonhomogeneous surfaces is modeled by a nonlocal arabolic free boundary equation. We show existence and H¨older continuity of a unique weak solution by a combination of smoothing and a variational method that can be directly ...
Śvadlenka, Karel, Omata, Seiro
core  

Evolution Equations for the Stefan Problem

open access: yes, 2015
We study particular kind of Stefan problem and use the theory of abstract quasilinear evolution equations for its solution.
Lukarevski, Martin
core  

ENERGY RELEASE RATE AND STRESS INTENSITY FACTOR IN ANTIPLANE ELASTICITY

open access: yes, 2010
. In the setting of antiplane linearized elasticity, we show the existence of the stress intensity factor and its relation with the energy release rate when the crack path is a C 1,1 curve. Finally, we show that the energy release rate is continuous with
Msc: 35r35, 35a35 49j45
core  

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