Results 11 to 20 of about 110,294 (285)

Moving Dirichlet boundary conditions [PDF]

open access: yesESAIM: Mathematical Modelling and Numerical Analysis, 2014
This paper develops a framework to include Dirichlet boundary conditions on a subset of the boundary which depends on time. In this model, the boundary conditions are weakly enforced with the help of a Lagrange multiplier method. In order to avoid that the ansatz space of the Lagrange multiplier depends on time, a bi-Lipschitz transformation, which ...
openaire   +1 more source

The Meyers Estimates for Domains Perforated along the Boundary

open access: yesMathematics, 2021
In this paper, we consider an elliptic problem in a domain perforated along the boundary. By setting a homogeneous Dirichlet condition on the boundary of the cavities and a homogeneous Neumann condition on the outer boundary of the domain, we prove ...
Gregory A. Chechkin
doaj   +1 more source

Solution to the Dirichlet Problem of the Wave Equation on a Star Graph

open access: yesMathematics, 2023
In this paper, the solution to the Dirichlet problem for the wave equation on the star graph is constructed. To begin, we solve the boundary value problem on the interval (on one edge of the graph).
Gaukhar Arepova   +2 more
doaj   +1 more source

On the dynamics in the AdS/BCFT correspondence

open access: yesJournal of High Energy Physics, 2022
We consider a perturbation of the Einstein gravity with the Neumann boundary condition, which is regarded as an end of the world brane (ETW brane) of the AdS/BCFT correspondence, in the AdS d+1 spacetime with d ≥ 3.
Yu-ki Suzuki, Seiji Terashima
doaj   +1 more source

Schroedinger functional formalism with domain-wall fermion [PDF]

open access: yes, 2006
Finite volume renormalization scheme is one of the most fascinating scheme for non-perturbative renormalization on lattice. By using the step scaling function one can follow running of renormalized quantities with reasonable cost.
M. Lüscher   +6 more
core   +3 more sources

Absorption semigroups and dirichlet boundary conditions

open access: yesMathematische Annalen, 1993
Given a positive \(C_ 0\)-semigroup \(T\) on \(L^ p(X)\) and an arbitrary non-negative potential \(V\), an absorption semigroup \(T_ V\) is constructed as a \(C_ 0\)-semigroup on \(L^ p(X_ V)\) for a certain subset \(X_ V\) of \(X\). Information is obtained about \(X_ V\).
Arendt, W., Batty, C.J.K.
openaire   +3 more sources

The effect of a new two-point nonlocal condition on the eigenvalue problem of the difference scheme for an elliptic partial differential equation

open access: yesAlexandria Engineering Journal, 2022
In this paper, a new form of two-point nonlocal boundary conditions is presented. This condition generalizes a Dirichlet condition at one boundary and a mixed condition at the other one.
S.M. Helal, A. Elmekawy
doaj   +1 more source

Boundary and Midpoint Behaviors of Lump Solutions in Vacuum String Field Theory [PDF]

open access: yes, 2005
We discuss various issues concerning the behaviors near the boundary (\sigma=0,\pi) and the midpoint (\sigma=\pi/2) of the open string coordinate X(\sigma) and its conjugate momentum P(\sigma)=-i\delta/\delta X(\sigma) acting on the matter projectors of ...
D. Gaiotto   +4 more
core   +2 more sources

Waveguides with Combined Dirichlet and Robin Boundary Conditions [PDF]

open access: yesMathematical Physics, Analysis and Geometry, 2006
20 pages, LaTeX with 1 EPS figure; to appear in Mathematical Physics, Analysis and ...
Freitas, P., Krejčiřík, D.
openaire   +3 more sources

TWO-DIMENSIONAL HYBRIDS WITH MIXED BOUNDARY VALUE PROBLEMS

open access: yesActa Polytechnica, 2016
Boundary value problems are considered on a simplex F in the real Euclidean space R2. The recent discovery of new families of special functions, orthogonal on F, makes it possible to consider not only the Dirichlet or Neumann boundary value problems on F,
Marzena Szajewska   +1 more
doaj   +1 more source

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