Results 21 to 30 of about 149,000 (282)

Construction of Maximal Hypersurfaces with Boundary Conditions [PDF]

open access: yes, 2016
We construct maximal hypersurfaces with a Neumann boundary condition in Minkowski space via mean curvature flow. In doing this we give general conditions for long time existence of the flow with boundary conditions with assumptions on the curvature of a ...
Lambert, Ben
core   +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

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

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

Singular SPDEs in domains with boundaries [PDF]

open access: yes, 2017
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, Máté, Hairer, Martin
core   +4 more sources

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

Quasilinear equations involving nonlinear Neumann boundary conditions

open access: yesDifferential and Integral Equations, 2012
26
Iturriaga, Leonelo   +3 more
openaire   +6 more sources

Neumann Boundary Condition for Abelian Vortices

open access: yes, 2023
16 pages, 5 ...
Manton, N. S., Zhao, Boan
openaire   +2 more sources

Least gradient problems with Neumann boundary condition [PDF]

open access: yesJournal of Differential Equations, 2017
We study existence of minimizers of the least gradient problem \[\inf_{v \in BV_g} \int_ (x, Dv),\] where $BV_g=\{v \in BV( ): \int_{\partial }gv=1\}$, $ (x,p): \times \R^n \rightarrow \R$ is a convex, continuous, and homogeneous function of degree $1$ with respect to the $p$ variable, and $g$ satisfies the comparability condition $\int_ ...
openaire   +3 more sources

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