Results 51 to 60 of about 59,795 (219)

Consistent boundary conditions for supergravity

open access: yes, 2005
We derive the complete orbit of boundary conditions for supergravity models which is closed under the action of all local symmetries of these models, and which eliminates spurious field equations on the boundary. We show that the Gibbons-Hawking boundary
van Nieuwenhuizen, P.   +1 more
core   +3 more sources

Investigation of the spectrum for the Sturm-Liouville problem with one integral boundary condition

open access: yesNonlinear Analysis, 2010
In this paper, the Sturm–Liouville problem with one classical first type boundary condition and other nonlocal integral boundary conditions of two cases is investigated.
A. Skučaitė   +3 more
doaj   +1 more source

The consistency conditions and the smoothness of generalized solutions of nonlocal elliptic problems [PDF]

open access: yes, 2014
We study smoothness of generalized solutions of nonlocal elliptic problems in plane bounded domains with piecewise smooth boundary. The case where the support of nonlocal terms can intersect the boundary is considered.
Gurevich, Pavel
core  

Boundary Controllability of Differential Equations with Nonlocal Condition

open access: yesJournal of Mathematical Analysis and Applications, 1999
Global exact boundary controllability in a given time-interval of a semilinear abstract dynamical system is considered. It is generally assumed that the dynamical system is defined in an infinite-dimensional Banach space, that it contains both a linear and a nonlinear part, and that, moreover, it satisfies the so-called nonlocal conditions.
Hyo-Keun Han, Jong Yeoul Park
openaire   +2 more sources

On the prescription of boundary conditions for nonlocal Poisson's and peridynamics models [PDF]

open access: yes, 2021
We introduce a technique to automatically convert local boundary conditions into nonlocal volume constraints for nonlocal Poisson's and peridynamic models. The proposed strategy is based on the approximation of nonlocal Dirichlet or Neumann data with a local solution obtained by using available boundary, local data.
Yue Yu, Marta D'Elia
openaire   +3 more sources

Applying fixed point techniques to solve fractional differential inclusions under new boundary conditions

open access: yesAIMS Mathematics
Many scholars have lately explored fractional-order boundary value issues with a variety of conditions, including classical, nonlocal, multipoint, periodic/anti-periodic, fractional-order, and integral boundary conditions.
Murugesan Manigandan   +3 more
doaj   +1 more source

Strictly convergent algorithm for an elliptic equation with nonlocal and nonlinear boundary conditions

open access: yesMathematical Modelling and Analysis, 2012
The paper describes a formally strictly convergent algorithm for solving a class of elliptic problems with nonlinear and nonlocal boundary conditions, which arise in modeling of the steady-state conductive-radiative heat transfer processes.
Karlis Birgelis, Uldis Raitums
doaj   +1 more source

Relations between spectrum curves of discrete Sturm-Liouville problem with nonlocal boundary conditions and graph theory

open access: yesLietuvos Matematikos Rinkinys, 2021
Sturm-Liouville problem with nonlocal boundary conditions arises in many scientific fields such as chemistry, physics, or biology. There could be found some references to graph theory in a discrete Sturm-Liouville problem, especially in investigation of ...
Jonas Vitkauskas, Artūras Štikonas
doaj   +1 more source

Generalized solutions of nonlocal elliptic problems [PDF]

open access: yes, 2014
An elliptic equation of order $2m$ with general nonlocal boundary-value conditions, in a plane bounded domain $G$ with piecewise smooth boundary, is considered. Generalized solutions belonging to the Sobolev space $W_2^m(G)$ are studied.
Gurevich, Pavel
core  

On the problem of calculation of correlation functions in the six-vertex model with domain wall boundary conditions

open access: yes, 2011
The problem of calculation of correlation functions in the six-vertex model with domain wall boundary conditions is addressed by considering a particular nonlocal correlation function, called row configuration probability.
A. G. Izergin   +24 more
core   +1 more source

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