Results 61 to 70 of about 64,125 (148)
Inequalities among eigenvalues of Sturm–Liouville problems
Journal of Inequalities and Applications, 1999 There are well-known inequalities among the eigenvalues of Sturm–Liouville problems with periodic, semi-periodic, Dirichlet and Neumann boundary conditions.
Kong Q, Wu H, Zettl A, Eastham MSP
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DLPNO-MP2 with Periodic Boundary Conditions
We present domain-based local pair natural orbital Møller--Plesset second order perturbation theory (DLPNO-MP2) with Born--von K{á}rm{á}n boundary (BvK) conditions. The approach is based on well-localised Wannier functions in a LCAO formalism and extends the molecular DLPNO-MP2 implementation Tubromole program package to periodic systems.
Nejad, Arman +3 more
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On the Time Periodic Free Boundary Associated to Some Nonlinear Parabolic Equations
Boundary Value Problems, 2010 We give sufficient conditions, being also necessary in many cases, for the existence of a periodic free boundary generated as the boundary of the support of the periodic solution of a general class of nonlinear parabolic equations.
Díaz JI, Badii M
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Electronic Journal of Differential Equations, 2007 In this work we present some new results concerning the existence and uniqueness of solutions to an impulsive first-order, nonlinear ordinary differential equation with "non-periodic" boundary conditions.
Christopher C. Tisdell, Juan J. Nieto
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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.
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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
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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 +2 more
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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 PhysicsWe 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 +3 more
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