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Vector fixed point approach to control of Kolmogorov differential systems

2 years ago

Abstract The paper presents a vector approach to control problems for systems of equations. The method is described in the…

Optimal approximation of unique continuation

2 years ago

Abstract We consider numerical approximations of ill-posed elliptic problems with conditional stability. The notion of optimal error estimates is defined including…

Estimates related to the iterates of positive linear operators and their multidimensional analogues

2 years ago

Abstract The starting point of this paper is the construction of a general family \(\left( L_{n}\right) _{n\geq 1}\) of positive…

Properties of positive linear operators connected with squared fundamental functions

2 years ago

Abstract The aim of this article is to present a general class of positive linear operators of discrete type related…

Inverse interpolating splines with applications to the equation solving

2 years ago

Abstract AuthorsCrăciun Iancu Tiberiu Popoviciu Institute of Numerical Analysis Romania Academy, Cluj-Napoca, Romania Tiberiu Oproiu Romanian Academy Astronomical Observatory Ion…

A note on the efficiency index of a class of two step Hermite iterative methods

2 years ago

Abstract One considers Hermite interpolatory methods, based on two interpolatory nodes which have the same multiplicity order. Duing the efficiency…

Theory and computation of radial solutions for Neumann problems with φ-Laplacian

2 years ago

Abstract The paper deals with existence, localization and multiplicity of radial positive solutions in the annulus or the ball, for…

Perov’s theorem applied to systems of equations

2 years ago

Abstract In this paper, we consider systems of equations having a linear part and also a nonlinear part. We give…

Testing Weyl geometric gravity with the SPARC galactic rotation curves database

2 years ago

Abstract We present a detailed investigation of the properties of the galactic rotation curves in the Weyl geometric gravity model, in which…

Computational orders of convergence of iterative methods for Richards’ equation

2 years ago

Abstract Numerical solutions for flows in partially saturated porous media pose challenges related to the non-linearity and elliptic-parabolic degeneracy of…

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