Results 61 to 70 of about 175,173 (185)

On stability of non-inflectional elastica

open access: yesComptes Rendus. Mécanique, 2020
This study considers the stability of a non-inflectional elastica under a conservative end force subject to the Dirichlet, mixed, and Neumann boundary conditions.
Batista, Milan
doaj   +1 more source

Boundary Value Problems for the Helmholtz Equation for a Half-plane with a Lipschitz Inclusion [PDF]

open access: yes, 2018
This paper considers to the problems of diffraction of electromagnetic waves on a half-plane, which has a finite inclusion in the form of a Lipschitz curve. The diffraction problem formulated as boundary value problem for Helmholtz equations and boundary
Lipachev, E.
core   +1 more source

Vacuum Energy and Renormalization on the Edge

open access: yes, 2007
The vacuum dependence on boundary conditions in quantum field theories is analysed from a very general viewpoint. From this perspective the renormalization prescriptions not only imply the renormalization of the couplings of the theory in the bulk but ...
Affleck I   +17 more
core   +1 more source

On the Solvability of Discrete Nonlinear Two-Point Boundary Value Problems

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2012
We prove the existence and uniqueness of solutions for a family of discrete boundary value problems by using discrete's Wirtinger inequality. The boundary condition is a combination of Dirichlet and Neumann boundary conditions.
Blaise Kone, Stanislas Ouaro
doaj   +1 more source

On the asymptotic shape of solutions to Neumann problems for non-cooperative parabolic systems

open access: yes, 2014
We consider a class of nonautonomous parabolic competition-diffusion systems on bounded radial domains under Neumann boundary conditions. We show that, if the initial profiles satisfy a reflection inequality with respect to a hyperplane, then global ...
Saldaña, Alberto, Weth, Tobias
core   +1 more source

On a Waveguide with Frequently Alternating Boundary Conditions: Homogenized Neumann Condition [PDF]

open access: yesAnnales Henri Poincaré, 2010
We consider a waveguide modeled by the Laplacian in a straight planar strip. The Dirichlet boundary condition is taken on the upper boundary, while on the lower boundary we impose periodically alternating Dirichlet and Neumann condition assuming the period of alternation to be small. We study the case when the homogenization gives the Neumann condition
Borisov D, Bunoiu R, Cardone G.
openaire   +3 more sources

Cone holography with Neumann boundary conditions and brane-localized gauge fields

open access: yesJournal of High Energy Physics
Cone holography is a codimension-n doubly holographic model, which can be interpreted as the holographic dual of edge modes on defects. The initial model of cone holography is based on mixed boundary conditions. This paper formulates cone holography with
Zheng-Quan Cui, Yu Guo, Rong-Xin Miao
doaj   +1 more source

Numerical solutions for optimal control problem governed by elliptic system on Lipschitz domains

open access: yesJournal of Taibah University for Science, 2019
In this paper, an optimal boundary control problem for a distributed elliptic system on Lipschitz domains with boundary homogeneous Dirichlet conditions and independently with Neumann conditions is analysed.
G. M. Bahaa, S. Khidr
doaj   +1 more source

Carleman estimates for parabolic equations with interior degeneracy and Neumann boundary conditions

open access: yes, 2017
We consider a parabolic problem with degeneracy in the interior of the spatial domain and Neumann boundary conditions. In particular, we will focus on the well-posedness of the problem and on Carleman estimates for the associated adjoint problem.
Boutaayamou, Idriss   +2 more
core   +1 more source

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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