Results 41 to 50 of about 382,398 (116)

Application of the existence theorems for modeling of periodic solutions of general boundary-value periodic problems for the linear non-homogeneous second order hyperbolic equation [PDF]

, 2014
Показано практичне використання отриманих результатів (умов існування) для моделювання розв’язків загальної крайової ( ) періодичної ( ) задачі для лінійного неоднорідного гіперболічного рівняння другого порядку (для конкретних значень періоду ...
Khoma-Mohylska, S.
core  

Exact C=1 Boundary Conformal Field Theories

, 1993
We present a solution of the problem of a free massless scalar field on the half line interacting through a periodic potential on the boundary. For a critical value of the period, this system is a conformal field theory with a non-trivial and explicitly ...
A. Abouelsaood, A. Belavin, A. O. Caldeira, A. O. Caldeira, A. O. Caldeira, C. G. Callan, C. G. Callan, C. G. Callan, C. G. Callan, C. G. Callan, Curtis G. Callan, E. Fradkin, F. Guinea, G. Mandal, G. Moore, I. Affleck, I. Affleck, I. R. Klebanov, Igor R. Klebanov, J. L. Cardy, J. L. Cardy, J. Polchinski, K. Demeterfi, M. B. Green, M. P. A. Fisher, N. Ishibashi, V. G. Kac   +26 more
core   +1 more source

Solvability of boundary value problems for nonlinear functional difference equations

Le Matematiche, 2010
Sufficient conditions for the existence of solutions of the periodic and anti-periodic boundary value problems for nonlinear functional difference equations are established, respectively.
Yuji Liu
doaj  

Positive solutions for periodic boundary value problem of fractional differential equation in Banach spaces

Advances in Difference Equations, 2018
This paper discusses the existence and uniqueness of positive solutions for a periodic boundary value problem of a fractional differential equation in an ordered Banach space E.
Yibo Kong, Pengyu Chen
doaj   +1 more source

Solvability of inclusions of Hammerstein type

, 2019
A fairly general continuation theorem of Leray-Schauder type for the class of so-called admissible multimaps is set forth. This result is then used to establish a universal rule for solving operator inclusions of Hammerstein type in Lebesgue-Bochner ...
Pietkun, Radosław
core   +1 more source

Periodic boundary value problems on time scales [PDF]

Advances in Difference Equations, 2005
The paper deals with the periodic boundary value problem on time scales \[ \begin{aligned} &x^{\Delta \Delta}(t) = f(t, x(\sigma(t))), \quad t \in [a, b]_{\mathbb{T}} \\ &x(a) = x(\sigma^2(b)), \quad x^\Delta (a) = x^\Delta (\sigma(b)),\end{aligned} \] where time scale \(\mathbb{T}\) is closed subset of the interval \([a,b]\), \(\sigma(t) = \inf \{ s ...
openaire   +4 more sources

Sensitivity Analysis of Chaotic Systems using Unstable Periodic Orbits

, 2018
A well-behaved adjoint sensitivity technique for chaotic dynamical systems is presented. The method arises from the specialisation of established variational techniques to the unstable periodic orbits of the system.
Lasagna, Davide
core   +1 more source

Matter wave pulses characteristics

, 2005
We study the properties of quantum single-particle wave pulses created by sharp-edged or apodized shutters with single or periodic openings. In particular, we examine the visibility of diffraction fringes depending on evolution time and temperature; the ...
Abramowitz A, Adolfo del Campo, Baute A D, Bernet S, Busch P, Clairon A Laurent P Nadir A Drewsen M Grison D Lounis B Salomon C, Delgado F, Faddeyeva V N, Felber J, Fowles G R, Gerasimov A S, Juan Gonzalo Muga, Lindner F, Marchewka A Schuss Z, Metcalf H J, Moretti P, Moshinsky M, Moshinsky M, Mánko V, Ramsey N F, Ranfangi A, Schneble D, Stevens K W H, Stevens K W H, Stevens K W H   +24 more
core   +1 more source

The Periodic Boundary Value Problem for the Weakly Dissipative μ-Hunter-Saxton Equation

Advances in Mathematical Physics, 2015
We study the periodic boundary value problem for the weakly dissipative μ-Hunter-Saxton equation. We establish the local well-posedness in Besov space B2,13/2, which extends the previous regularity range to the critical case.
Zhengyong Ouyang, Xiangdong Wang, Haiwu Rong   +2 more
doaj   +1 more source

Existence of Positive Solutions for a Fourth-Order Periodic Boundary Value Problem

Abstract and Applied Analysis, 2011
The existence results of positive solutions are obtained for the fourth-order periodic boundary value problem u(4)−βu′′+αu=f(t,u,u′′), 0≤t≤1, u(i)(0)=u(i)(1),  i=0,1,2,3, where f:[0,1]×R+×R→R+ is continuous, α,β∈R, and satisfy 00.
Yongxiang Li
doaj   +1 more source