نتایج جستجو برای: nonlinear problems
تعداد نتایج: 776661 فیلتر نتایج به سال:
Eigenvalue problems of the form x′′ = −λf(x) + μg(x−), (i), x(0) = 0, x(1) = 0, (ii) are considered, where x and x− are the positive and negative parts of x respectively. We are looking for (λ, μ) such that the problem (i), (ii) has a nontrivial solution. This problem generalizes the famous Fuč́ık problem for piece-wise linear equations. In our considerations functions f and g may be nonlinear f...
In this paper, we study nonlinear second order differential inclusions with a multivalued maximal monotone term and nonlinear boundary conditions. We prove existence theorems for both the convex and nonconvex problems, when domA 6= R and domA = R , with A being the maximal monotone term. Our formulation incorporates as special cases the Dirichlet, Neumann and periodic problems. Our tools come f...
In this paper we define the exact k-coverage problem, and study it for the special cases of intervals and circular-arcs. Given a set system consisting of a ground set of n points with integer demands {d0, . . . , dn−1} and integer rewards, subsets of points, and an integer k, select up to k subsets such that the sum of rewards of the covered points is maximized, where point i is covered if exac...
We give via variational approach and multiresolution expansion in the base of compactly supported wavelets the explicit time description of four following problems: dynamics and optimal dynamics for some important electromechanical system, Galerkin approximation for beam equation, computations of Melnikov functions for perturbed Hamiltonian systems. We also consider wavelet parametrization in F...
Nonlinear Assignment Problems (NAPs) are combinatorial optimization problems for which no exact algorithm exists that can solve them in reasonable computational time. They enjoy applications in diverse areas, such as location theory, data association problems, physics, manufacturing and many others. This talk is divided into two parts. First an overview of NAPs will be presented, where diierent...
Modeling of large amplitude of structures such as slender, flexible cantilever beam and fluid-structure resting on nonlinear elastic foundations or subjected to stretching effects often lead to strongly nonlinear models of Duffing equations which are not amendable to exact analytical methods. In this work, explicit analytical solutions to the large amplitude nonlinear oscillation systems of cub...
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