Componentwise Dinkelbach algorithm for nonlinear fractional optimization problems
Abstract The paper deals with fractional optimization problems where the objective function (ratio of two functions) is defined on a…
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The strict superlinear order can be faster than the infinite order
Abstract The strict superlinear order (superlinear convergence) was usually regarded as having an intermediate speed between between linear and with…
Nash equilibria for componentwise variational systems
Abstract In this paper, we generalize an existing result regarding the existence of a Nash equilibrium for a system of…
On Ulam stability of a partial differential operator in Banach spaces
Abstract In this paper, we prove that, if \(\inf \limits_{x\in A}\left \vert f\left(x\right) \right \vert =m>0\), then the partial differential…
Dinkelbach Type Approximation Algorithms for Nonlinear Fractional Optimization Problems
Abstract In this paper we establish some approximation versions of the classical Dinkelbach algorithm for nonlinear fractional optimization problems in…
Localization of solutions for semilinear problems with poly-Laplace type operators
Abstract The paper presents an abstract theory regarding the problems with semilinear operator equations involving iterates of a strongly monotone…
Solving ill-posed Helmholtz problems with physics-informed neural networks
Abstract We consider the unique continuation (data assimilation) problem for the Helmholtz equation and study its numerical approximation based on…
Nonlinear alternatives of hybrid type for nonself vector-valued maps and application
Abstract In this paper we obtain nonlinear alternatives of Leray-Schauder and Monch type for nonself vector-valued operators, under hybrid conditions…
Analysis of Navier–Stokes Models for Flows in Bidisperse Porous Media
Abstract Having in view a model proposed by Nield and Kuznetsov (Transp Porous Media 59:325–339, 2005; Transp Porous Media 96:495–499,…
On the Chebyshev subspaces in normed space of Lipschitz functions
Original title (in Romanian)Asupra unor subspații cebâșeviene din spațiul normat al funcțiilor lipschitziene Abstract AuthorsCostica Mustata “Tiberiu Popoviciu” Institute of…