On a problem of B.A. Karpilovskaya
Abstract AuthorsCostica Mustata “Tiberiu Popoviciu” Institute of Numerical Analysis, Romanian Academy, Romania Keywords? Paper coordinatesC. Mustăţa, On a problem of…
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The approximation by spline functions of the solution of a polylocal problem for a differential equation of order p
Abstract AuthorsCostică Mustăţa Department of Mathematics Babes-Bolyai University, Cluj-Napoca, Romania Keywords? Paper coordinatesC. Mustăţa, The approximation by spline functions of…
Extension of Lipschitz functions and best approximation
Abstract AuthorsCostica Mustata “Tiberiu Popoviciu” Institute of Numerical Analysis, Romanian Academy, Romania Keywords? Paper coordinatesC. Mustăţa, Şt. Cobzaş, Extension of…
Some remarks concerning norm preserving extension and best approximation
Abstract Let \(X,Y\) be two normed spaces, \(X_{1}\) a subspace of \(X\) and \(A:X\rightarrowY\) a continuous linear operator. Let us…
Uniqueness of extension of semi-Lipschitz functions on quasi-metric spaces
Abstract AuthorsCostica Mustata “Tiberiu Popoviciu” Institute of Numerical Analysis, Romanian Academy, Romania Keywords? Paper coordinatesC. Mustăţa, Uniqueness of extension of…
Extension of semi Lipschitz function on quasi-metric spaces
Abstract The aim of this note is to prove an extension theorem for semi-Lipschitz real functions defined on quasi-metric spaces,…
Extension of starshaped bounded semi-Lipschitz function on a quasi metric linear spaces
Abstract AuthorsCostica Mustata “Tiberiu Popoviciu” Institute of Numerical Analysis, Romanian Academy, Romania Keywords? Paper coordinatesC. Mustăţa, Extension of starshaped bounded…
Extension of convex semi-Lipschitz functions on quasi-metric linear spaces
Abstract In this paper one shows that a convex semi-Lipschitz functions defined on a convex subset of a quasi-metric linear…
On the extremal semi-Lipschitz function
Abstract The extremal elements of the unit balls of Banach spaces play an important role in the study of the…
A Phelps type result for spaces with asymmetric norms
Abstract If \((X,||\cdot|)\) is a linear space with asymmetric norm and \(Y\) is a \(X\), for every \(f\in Y_{+}^{\ast}\) (the…