نتایج جستجو برای: spectral projected gradient method

تعداد نتایج: 1874123  

Journal: :Computational Optimization and Applications 2015

Journal: :IEEE Transactions on Information Theory 2016

2014
Endre Süli E. Süli

Abstract. We consider a fully discrete approximation of the H gradient flow of an energy integral where the energy density is given by the sum of a nonnegative multi-well potential term and a bending energy term. The spatial discretization is based on a Fourier spectral method, which is combined with an implicit Euler time discretization. The numerical method is shown to be stable and to exhibi...

Journal: :SIAM Journal on Optimization 2007
Roberto Andreani Ernesto G. Birgin José Mario Martínez María Laura Schuverdt

Augmented Lagrangian methods with general lower-level constraints are considered in the present research. These methods are useful when efficient algorithms exist for solving subproblems in which the constraints are only of the lower-level type. Inexact resolution of the lower-level constrained subproblems is considered. Global convergence is proved using the Constant Positive Linear Dependence...

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