Results 31 to 40 of about 1,000,248 (275)

Flux form Semi-Lagrangian methods for parabolic problems [PDF]

, 2015
A semi-Lagrangian method for parabolic problems is proposed, that extends previous work by the authors to achieve a fully conservative, flux-form discretization of linear and nonlinear diffusion equations. A basic consistency and convergence analysis are
Bonaventura, Luca, Ferretti, Roberto
core   +3 more sources

Well-posed Dirichlet problems pertaining to the Duffing equation

Electronic Journal of Qualitative Theory of Differential Equations, 2014
In this paper we investigate existence and continuous dependence on functional parameter of Duffing's type equation with Dirichlet boundary value conditions.
Piotr Kowalski
doaj   +1 more source

Preface

Bruno Pini Mathematical Analysis Seminar, 2020
Preface to the BPMAS special volume dedicated to the workshop: Something about nonlinear problems, Bologna, June 13-14, 2019.
Fausto Ferrari, Fabiana Leoni
doaj   +1 more source

Degenerate parabolic equations appearing in atmospheric dispersion of pollutants

Electronic Journal of Qualitative Theory of Differential Equations, 2016
Linear and nonlinear degenerate abstract parabolic equations with variable coefficients are studied. Here the equation and boundary conditions are degenerated on all boundary and contain some parameters.
Veli Shakhmurov, Aida Sahmurova
doaj   +1 more source

Nonlinear quantum mechanics implies polynomial-time solution for NP-complete and #P problems [PDF]

, 1998
If quantum states exhibit small nonlinearities during time evolution, then quantum computers can be used to solve NP-complete problems in polynomial time. We provide algorithms that solve NP-complete and #P oracle problems by exploiting nonlinear quantum
A. Ekert, A. Peres, B. G. Levy, D. I. Fivel, D. P. DiVincenzo, D. S. Abrams, Daniel S. Abrams, J. J. Bollinger, J. Polchinski, L. K. Grover, N. Gisin, O. Bertolami, P. K. Majumder, P. Shor, R. L. Walsworth, R. P. Feynman, S. Lloyd, S. Weinberg, S. Weinberg, Seth Lloyd, T. E. Chupp   +20 more
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A Reliable Algorithm for Fractional Schrödinger Equations

Walailak Journal of Science and Technology, 2012
In this paper, the Homotopy Perturbation Method (HPM) is applied to find exact solutions of time-fractional Schrödinger equations. Numerical results coupled with graphical representations explicitly reveal the complete reliability and efficiency of the ...
Abid KAMRAN, Umer HAYAT, Ahmet YILDIRIM, Syed Tauseef MOHYUD-DIN   +3 more
doaj   +1 more source

Lie symmetries of nonlinear boundary value problems [PDF]

, 2012
Nonlinear boundary value problems (BVPs) by means of the classical Lie symmetry method are studied. A new definition of Lie invariance for BVPs is proposed by the generalization of existing those on much wider class of BVPs.
Alexiades, Andreev, Barry, Benjamin, Bluman, Bluman, Bluman, Briozzo, Britton, Broadbridge, Carslaw, Cherniha, Cherniha, Cherniha, Cherniha, Cherniha, Cherniha, Cherniha, Crank, Fushchych, Galaktionov, Ibragimov, King, Kudryashov, Lorenzo-Trueba, Ma, Ma, Malfliet, Olver, Olver, Ovsiannikov, Polyanin, Pukhnachov, Pukhnachov, Ready, Rogers, Roman Cherniha, Rubinstein, Sergii Kovalenko, Sidorov, Stefan, Voller, Wang, Wazwaz   +43 more
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Perturbations of nonlinear eigenvalue problems

, 2018
We consider perturbations of nonlinear eigenvalue problems driven by a nonhomogeneous differential operator plus an indefinite potential. We consider both sublinear and superlinear perturbations and we determine how the set of positive solutions changes ...
Papageorgiou, Nikolaos S., Repovš, Dušan D., Rădulescu, Vicenţiu D.   +2 more
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Using Functional Programming to recognize Named Structure in an Optimization Problem: Application to Pooling [PDF]

, 2016
Branch-and-cut optimization solvers typically apply generic algorithms, e.g., cutting planes or primal heuristics, to expedite performance for many mathematical optimization problems.
Ceccon, F, Kouyialis, G, Misener, R
core   +1 more source

Mathematical modeling of the process of nonlinear deformation of thin-walled structures

Вестник Дагестанского государственного технического университета: Технические науки
Objective. The objective is to develop a unified method for solving a general nonlinear boundary value problem associated with discontinuous phenomena, which allows identifying all the characteristic features of the behavior of thin-walled systems under ...
G. M. Murtazaliev, M. M. Paizulaev
doaj   +1 more source