Results 21 to 30 of about 148,680 (322)

Holographic BCFT with Dirichlet boundary condition

open access: yesJournal of High Energy Physics, 2019
Neumann boundary condition plays an important role in the initial proposal of holographic dual of boundary conformal field theory, which has yield many interesting results and passed several non-trivial tests.
Rong-Xin Miao
doaj   +1 more source

Correlation functions of boundary field theory from bulk Green's functions and phases in the boundary theory [PDF]

open access: yes, 1998
In the context of the bulk-boundary correspondence we study the correlation functions arising on a boundary for different types of boundary conditions. The most general condition is the mixed one interpolating between the Neumann and Dirichlet conditions.
Avis   +12 more
core   +2 more sources

On the numerical solution of identification hyperbolic-parabolic problems with the Neumann boundary condition

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2018
In the present study, a numerical study for source identification problems with the Neumann boundary condition for a one-dimensional hyperbolic-parabolic equation is presented.
M.A. Ashyralyeva, M. Ashyralyev
doaj   +1 more source

NEUMANN BOUNDARY CONDITION FOR A NONLOCAL BIHARMONIC EQUATION

open access: yesBulletin of the South Ural State University series "Mathematics. Mechanics. Physics", 2022
The solvability conditions for a class of boundary value problems for a nonlocal biharmonic equation in the unit ball with the Neumann conditions on the boundary are studied. The nonlocality of the equation is generated by some orthogonal matrix. The presence and uniqueness of a solution to the proposed Neumann boundary condition is examined, and an ...
B.Kh. Turmetov, V.V. Karachik
openaire   +2 more sources

Singular SPDEs in domains with boundaries [PDF]

open access: yes, 2018
We study spaces of modelled distributions with singular behaviour near the boundary of a domain that, in the context of the theory of regularity structures, allow one to give robust solution theories for singular stochastic PDEs with boundary conditions.
Gerencsér, M, Hairer, M
core   +1 more source

Positive Solutions of the Semipositone Neumann Boundary Value Problem

open access: yesMathematical Modelling and Analysis, 2015
In this paper we consider the Neumann boundary value problem at resonance −u''(t) = f t, u(t)  , 0 < t < 1, u' (0) = u' (1) = 0. We assume that the nonlinear term satisfies the inequality f(t, z) + α2z + β(t) ≥ 0, t ∈ [0, 1], z ≥ 0, where β : [0, 1]
Johnny Henderson, Nickolai Kosmatov
doaj   +1 more source

Homogenization of oblique boundary value problems

open access: yesAdvanced Nonlinear Studies, 2023
We consider a nonlinear Neumann problem, with periodic oscillation in the elliptic operator and on the boundary condition. Our focus is on problems posed in half-spaces, but with general normal directions that may not be parallel to the directions of ...
Choi Sunhi, Kim Inwon C.
doaj   +1 more source

Identification hyperbolic problems with the Neumann boundary condition

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2018
In the present study, an identification problem with the Neumann boundary condition for a one-dimensional hyperbolic equation is investigated. Stability estimates for the solution of the identification problem are established. Furthermore, a first order
A. Ashyralyev, F. Emharab
doaj   +1 more source

Pointwise observation of the state given by parabolic system with boundary condition involving multiple time delays

open access: yesArchives of Control Sciences, 2016
Various optimization problems for linear parabolic systems with multiple constant time delays are considered. In this paper, we consider an optimal distributed control problem for a linear parabolic system in which multiple constant time delays appear in
Kowalewski Adam
doaj   +1 more source

Large mass boundary condensation patterns in the stationary Keller-Segel system [PDF]

open access: yes, 2016
We consider the boundary value problem $-\Delta u + u =\lambda e^u$ in $\Omega$ with Neumann boundary condition, where $\Omega$ is a bounded smooth domain in $\mathbb R^2$, $\lambda>0.$ This problem is equivalent to the stationary Keller-Segel system ...
del Pino, Manuel   +2 more
core   +1 more source

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