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On the metric projection and the quotient mapping

3 years ago

Abstract AuthorsCostica Mustata Costică Mustăţa “Tiberiu Popoviciu” Institute of Numerical Analysis, Romanian Academy, Romania KeywordsPaper coordinatesC. Mustăţa, On the metric…

Approximation by spline functions of the solutions of a linear bilocal problem

3 years ago

Abstract AuthorsCostica Mustata “Tiberiu Popoviciu” Institute of Numerical Analysis, Romanian Academy, Romania KeywordsPaper coordinatesC. Mustăţa, Approximation by spline functions of…

Extension of bilinear functionals and best approximation in 2-normed space

3 years ago

Abstract The paper investigates the relations between the extension properties of bounded bilinear functionals and the approximation properties in 2-normed…

On the derivative-interpolating spline functions of even degree

3 years ago

Abstract AuthorsCostica Mustata “Tiberiu Popoviciu” Institute of Numerical Analysis, Romanian Academy, Romania KeywordsPaper coordinatesC. Mustăţa, On the derivative-interpolating spline functions…

A Galerkin Methods for a singularly perturbed bilocal problem

3 years ago

Abstract A bilocal singularly perturbed problem is solved using Galerkin’s method in a space in which the test functions are…

On a problem of B.A. Karpilovskaya

3 years ago

Abstract AuthorsCostica Mustata Costică Mustăţa “Tiberiu Popoviciu” Institute of Numerical Analysis, Romanian Academy, Romania KeywordsPaper coordinatesC. Mustăţa, On a problem…

Extension of Lipschitz functions and best approximation

3 years ago

Abstract The aim of this paper is to present various extension results for Lipschitz functions and to put in evidence…

Some remarks concerning norm preserving extension and best approximation

3 years ago

Abstract Let \(X,Y\) be two normed spaces, \(X_{1}\) a subspace of \(X\) and \(A:X \rightarrow Y\) a continuous linear operator.…

Uniqueness of extension of semi-Lipschitz functions on quasi-metric spaces

3 years ago

Abstract AuthorsCostica Mustata “Tiberiu Popoviciu” Institute of Numerical Analysis, Romanian Academy, Romania KeywordsPaper coordinatesC. Mustăţa, Uniqueness of extension of semi-Lipschitz…

Extension of semi Lipschitz function on quasi-metric spaces

3 years ago

Abstract The aim of this note is to prove an extension theorem for semi-Lipschitz real functions defined on quasi-metric spaces,…

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