Results 91 to 100 of about 175,173 (185)

The Quasistationary Phase Field Equations with Neumann Boundary Conditions

Journal of Differential Equations, 2000
The paper considers the quasistationary phase field equations \[ \partial_t(u+ \varphi)- \Delta u= f\quad\text{in }\Omega\times ]0,T[, \] \[ \partial_\nu u= 0\quad\text{on }\partial\Omega\times ]0, T[, \] \[ (u+\varphi)(0)= w_0, \] and \[ -2\varepsilon\Delta\varphi+ {1\over\varepsilon} W'(\varphi)= u\quad\text{in }\Omega\times ]0, T[, \] \[ \partial_ ...
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Solvability of some Neumann-type boundary value problems for biharmonic equations

Electronic Journal of Differential Equations, 2017
We study some boundary-value problems for inhomogeneous biharmonic equation with periodic boundary conditions. These problems are generalization to periodic data of the Neumann-type boundary-value problems considered before by the authors.
Valery Karachik, Batirkhan Kh. Turmetov
doaj  

Eigenfunctions for rectangles with Neumann boundary conditions

, 2013
Consider the eigenfunctions $u$ for a ree rectangular membrane wo that $- u= u$ on $\mathcal R(c,d)=(0,d)\times(0,d)$. In this note we show that if if $u>0$ on $\partial \mathcal R(c,d)) then $u\equiv C$ for some positive constant.
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Interface evolution with Neumann boundary condition

Interface evolution with Neumann boundary condition
Summary: We prove a comparison theorem for viscosity solutions of singular degenerate parabolic equations with Neumann boundary condition in a convex bounded domain. We also construct viscosity solutions for the Neumann problem in not necessarily convex domain. We apply our theorem to construct a global generalized evolution for interface equation with
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Numerical solution to inverse elliptic problem with Neumann type overdetermination and mixed boundary conditions

Electronic Journal of Differential Equations, 2015
This article studies the numerical solution of inverse problems for the multidimensional elliptic equation with Dirichlet-Neumann boundary conditions and Neumann type overdetermination.
Charyyar Ashyralyyev, Yasar Akkan
doaj  

Degenerate Fourth Order Parabolic Equations with Neumann Boundary Conditions

We study the generation property for a fourth order operator in divergence or in non divergence form with suitable Neumann boundary conditions. As a consequence we obtain the well posedness for the parabolic equations governed by these operators. The novelty of this paper is that the operators depend on a function $a: [0,1] \rightarrow \R_+$ that ...
Camasta, Alessandro, Fragnelli, Genni
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Gaussian Versus Mean-Field Models: Contradictory Predictions for the Casimir Force Under Dirichlet-Neumann Boundary Conditions. [PDF]

Entropy (Basel)
Dantchev D, Vassilev V, Rudnick J.
europepmc   +1 more source

Optimal error estimates of the diffuse domain method for second order parabolic equations. [PDF]

BIT Numer Math
Hao W, Ju L, Xu Y.
europepmc   +1 more source

A fourth-order exponential time differencing scheme with real and distinct poles rational approximation for solving non-linear reaction-diffusion systems. [PDF]

J Comput Appl Math
Attipoe WK, Kleefeld A, Asante-Asamani EO.   +2 more
europepmc   +1 more source

Impedance-Controlled Molecular Transport Across Multilayer Skin Membranes. [PDF]

Membranes (Basel)
Galovic S, Radenkovic MC, Suljovrujic E.
europepmc   +1 more source