Results 51 to 60 of about 5,151 (167)

Supercooled Stefan problem with a Neumann type boundary condition

open access: yesElectronic Journal of Differential Equations, 2020
We consider a supercooled one-dimensional Stefan problem with a Neumann boundary condition and a variable thermal diffusivity. We establish a necessary and sufficient condition for the heat flux at the fixed face x=0, in order to obtain existence ...
Adriana C. Briozzo
doaj  

A Boundary Integral Equation with the Generalized Neumann Kernel for a Certain Class of Mixed Boundary Value Problem

open access: yesJournal of Applied Mathematics, 2012
We present a uniquely solvable boundary integral equation with the generalized Neumann kernel for solving two-dimensional Laplace’s equation on multiply connected regions with mixed boundary condition.
Mohamed M. S. Nasser   +2 more
doaj   +1 more source

Green’s Functions for Neumann Boundary Conditions

open access: yesMathematics
Green’s functions for Neumann boundary conditions have been considered in Math, Physics, and Electromagnetism textbooks, but often with mistakes of omission and commission. Special constraints and other properties required for Neumann boundary conditions have generally not been noticed or treated correctly.
openaire   +2 more sources

Neumann Boundary Condition for Abelian Vortices

open access: yes, 2023
16 pages, 5 ...
Manton, N. S., Zhao, Boan
openaire   +2 more sources

On the time to tracer equilibrium in the global ocean [PDF]

open access: yesOcean Science, 2009
An important issue for the interpretation of data from deep-sea cores is the time for tracers to be transported from the sea surface to the deep ocean.
F. Primeau, E. Deleersnijder
doaj  

Accuracy, Robustness, and Efficiency of the Linear Boundary Condition for the Black-Scholes Equations

open access: yesDiscrete Dynamics in Nature and Society, 2015
We briefly review and investigate the performance of various boundary conditions such as Dirichlet, Neumann, linear, and partial differential equation boundary conditions for the numerical solutions of the Black-Scholes partial differential equation.
Darae Jeong   +5 more
doaj   +1 more source

Eigenstructure of the equilateral triangle. Part III. The Robin problem

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2004
Lamé's formulas for the eigenvalues and eigenfunctions of the Laplacian on an equilateral triangle under Dirichlet and Neumann boundary conditions are herein extended to the Robin boundary condition.
Brian J. McCartin
doaj   +1 more source

Weak solutions to the Landau-Lifshitz-Maxwell system with nonlinear Neumann boundary conditions arising from surface energies

open access: yesElectronic Journal of Differential Equations, 2015
We study the Landau-Lifshitz system associated with Maxwell equations in a bilayered ferromagnetic body when super-exchange and surface anisotropy interactions are present in the spacer in-between the layers. In the presence of these surface energies,
Gilles Carbou   +2 more
doaj  

Solving the geodesics on the ellipsoid as a boundary value problem

open access: yesJournal of Geodetic Science, 2013
The geodesic between two given points on an ellipsoid is determined as a numerical solution of a boundary value problem. The secondorder ordinary differential equation of the geodesic is formulated by means of the Euler-Lagrange equation of the calculus ...
Panou G., Delikaraoglou D., Korakitis R.
doaj   +1 more source

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