Results 91 to 100 of about 558,964 (194)

Semilinear Periodic-Parabolic Equations with Nonlinear Boundary Conditions

Journal of Differential Equations, 1996
The author establishes existence results for periodic parabolic problems with nonlinear boundary conditions provided ordered lower and upper solutions are given. The approach is new, and the proofs are based on a priori estimates for parabolic problems with quadratic growth in \(\nabla u\) and Leray-Schauder degree arguments.
openaire   +2 more sources

PERIODIC BOUNDARY VALUE PROBLEMS FOR HIGHER ORDER IMPULSIVE FUNCTIONAL DIFFERENTIAL EQUATIONS

Süleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2009
We prove existence results for the solutions of the periodic boundary valueproblem concerning the n-th order functional differential equation with impulses effects and the periodic boundary conditions.
Yuji LIU
doaj  

Positive solutions for second-order boundary-value problems with sign changing Green's functions

Electronic Journal of Differential Equations, 2017
In this article we analyze some possibilities of finding positive solutions for second-order boundary-value problems with the Dirichlet and periodic boundary conditions, for which the corresponding Green's functions change sign.
Alberto Cabada, Ricardo Enguica, Lucia Lopez-Somoza   +2 more
doaj  

Periodyczne Drgania Swobodne Belki przy Słabo-Nieliniowych Warunkach Brzegowych

Engineering Transactions, 1967
Natural periodic vibration of a homogeneous beam is considered in the case of the presence of small nonlinear terms in two boundary conditions. In the first approximation periodic solution is obtained by means of the modified perturbation method.
W. Szemplińska-Stupnicka
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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
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Small circle expansion for adjoint QCD2 with periodic boundary conditions

Journal of High Energy Physics
We study 1 + 1-dimensional SU(N) gauge theory coupled to one adjoint multiplet of Majorana fermions on a small spatial circle of circumference L. Using periodic boundary conditions, we derive the effective action for the quantum mechanics of the holonomy
Ross Dempsey, Igor R. Klebanov, Silviu S. Pufu, Benjamin T. Søgaard   +3 more
doaj   +1 more source

Lipid and Peptide Diffusion in Bilayers: The Saffman-Delbrück Model and Periodic Boundary Conditions. [PDF]

J Phys Chem B, 2017
Venable RM, Ingólfsson HI, Lerner MG, Perrin BS, Camley BA, Marrink SJ, Brown FLH, Pastor RW.   +7 more
europepmc   +1 more source

Crystalline Moduli of Polymers, Evaluated from Density Functional Theory Calculations under Periodic Boundary Conditions. [PDF]

ACS Omega, 2018
Kurita T, Fukuda Y, Takahashi M, Sasanuma Y.   +3 more
europepmc   +1 more source

First-order Phase Transitions in Finite Systems I: Periodic Boundary Conditions

Advances in Electrical and Electronic Engineering, 2005
We briefly review rigorous results on the finite-size effect near first-order phase transitions at which a two-phase coexistence takes place. We consider a large class of statistical mechanical models in (hyper)cubic volumes with periodic boundary ...
Igor Medved
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Strong influence of periodic boundary conditions on lateral diffusion in lipid bilayer membranes. [PDF]

J Chem Phys, 2015
Camley BA, Lerner MG, Pastor RW, Brown FL.   +3 more
europepmc   +1 more source