Results 31 to 40 of about 174,758 (288)

Spontaneous symmetry breaking in free theories with boundary potentials

open access: yesSciPost Physics, 2021
Patterns of symmetry breaking induced by potentials at the boundary of free $O(N)$-models in $d=3- \epsilon$ dimensions are studied. We show that the spontaneous symmetry breaking in these theories leads to a boundary RG flow ending with $N - 1$ Neumann ...
Vladimir Procházka, Alexander Söderberg
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

S-shaped connected component of positive solutions for second-order discrete Neumann boundary value problems

open access: yesOpen Mathematics, 2020
By using the bifurcation method, we study the existence of an S-shaped connected component in the set of positive solutions for discrete second-order Neumann boundary value problem.
Miao Liangying, Liu Jing, He Zhiqian
doaj   +1 more source

Supergravity at the boundary of AdS supergravity

open access: yes, 2009
We give a general analysis of AdS boundary conditions for spin-3/2 Rarita-Schwinger fields and investigate boundary conditions preserving supersymmetry for a graviton multiplet in AdS_4.
Aaron J. Amsel   +5 more
core   +1 more source

Dirichlet to Neumann operator for abelian Yang-Mills gauge fields

open access: yes, 2017
We consider the Dirichlet to Neumann operator for abelian Yang- Mills boundary conditions. We treat the case for space-time manifolds with general smooth boundary components.
Diaz-Marin, Homero G.
core   +1 more source

The "hot spots" problem in planar domains with one hole [PDF]

open access: yes, 2004
There exists a planar domain with piecewise smooth boundary and one hole such that the second eigenfunction for the Laplacian with Neumann boundary conditions attains its maximum and minimum inside the ...
Burdzy, Krzysztof
core   +2 more sources

Homogenization of elliptic systems with Neumann boundary conditions [PDF]

open access: yesJournal of the American Mathematical Society, 2013
39 ...
Kenig, Carlos E.   +2 more
openaire   +3 more sources

Digital Simulation of Diffusion Limited Chronoamperometry at Disk Electrodes without Neumann Boundary Conditions on the axis or at the insulating plane

open access: yesInternational Journal of Electrochemical Science, 2008
It is proposed that in the digital simulation of a disk (or band) electrode flush with an insulating plane, the customary Neumann boundary conditions can be dispensed with on the axis and at the insulating plane, and diffusion can be applied in the ...
D. Britz
doaj   +1 more source

Isospectral shapes with Neumann and alternating boundary conditions [PDF]

open access: yesPhysical Review E, 2003
The isospectrality of a well-known pair of shapes constructed from two arrangements of seven congruent right isosceles triangles with the Neumann boundary condition is verified numerically to high precision. Equally strong numerical evidence for isospectrality is presented for the eigenvalues of this standard pair in new boundary configurations with ...
Driscoll, T., Gottlieb, Hans
openaire   +2 more sources

A game interpretation of the Neumann problem for fully nonlinear parabolic and elliptic equations

open access: yes, 2012
We provide a deterministic-control-based interpretation for a broad class of fully nonlinear parabolic and elliptic PDEs with continuous Neumann boundary conditions in a smooth domain.
Daniel, Jean-Paul
core   +4 more sources

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