Results 11 to 20 of about 174,758 (288)

Neumann boundary condition for Abelian BPS vortices

open access: yesJournal of High Energy Physics, 2023
Abstract We study abelian BPS vortices on a surface S with boundary, which satisfy the Neumann boundary condition on the norm of the scalar field, or equivalently, that the current along the boundary vanishes. These vortices have quantised magnetic flux and quantised energy.
Manton, NS, Zhao, Boan
openaire   +2 more sources

Exact Null Controllability of a One-Dimensional Wave Equation with a Mixed Boundary

open access: yesMathematics, 2023
In this paper, exact null controllability of one-dimensional wave equations in non-cylindrical domains was discussed. It is different from past papers, as we consider boundary conditions for more complex cases.
Lizhi Cui, Jing Lu
doaj   +1 more source

On the ghost problem of conformal gravity

open access: yesJournal of High Energy Physics, 2023
We study the metric perturbations around the de Sitter and Minkowski backgrounds in Conformal Gravity. We confirm the presence of ghosts in both cases. In the de Sitter case, by applying the Maldacena boundary conditions — the Neumann boundary condition ...
Anamaria Hell   +2 more
doaj   +1 more source

Free energy and defect C-theorem in free fermion

open access: yesJournal of High Energy Physics, 2021
We describe a p-dimensional conformal defect of a free Dirac fermion on a d-dimensional flat space as boundary conditions on a conformally equivalent space ℍ p+1 × S $$ \mathbbm{S} $$ d−p−1.
Yoshiki Sato
doaj   +1 more source

On the localization and numerical computation of positive radial solutions for $\phi $-Laplace equations in the annulus

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2022
The paper deals with the existence and localization of positive radial solutions for stationary partial differential equations involving a general $\phi $-Laplace operator in the annulus.
Jorge Rodríguez-López   +2 more
doaj   +1 more source

Path Integral Solution of Linear Second Order Partial Differential Equations I. The General Construction [PDF]

open access: yes, 2004
A path integral is presented that solves a general class of linear second order partial differential equations with Dirichlet/Neumann boundary conditions. Elementary kernels are constructed for both Dirichlet and Neumann boundary conditions.
Abraham   +16 more
core   +2 more sources

Nonlocal problems with Neumann boundary conditions [PDF]

open access: yesRevista Matemática Iberoamericana, 2017
We introduce a new Neumann problem for the fractional Laplacian arising from a simple probabilistic consideration, and we discuss the basic properties of this model. We can consider both elliptic and parabolic equations in any domain. In addition, we formulate problems with nonhomogeneous Neumann conditions, and also with mixed Dirichlet and Neumann ...
Serena Dipierro   +2 more
openaire   +4 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   +7 more sources

Four Boundary Value Problems for a Nonlocal Biharmonic Equation in the Unit Ball

open access: yesMathematics, 2022
Solvability issues of four boundary value problems for a nonlocal biharmonic equation in the unit ball are investigated. Dirichlet, Neumann, Navier and Riquier–Neumann boundary value problems are studied.
Valery Karachik   +2 more
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

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