Best uniform approximation of semi-Lipschitz function by extension
Abstract In this paper we consider the problem of best uniform approximation of a real valued semi-Lipschitz function \(F\) defined…
2007
Extension and approximation of semi-Lipschitz functions
Abstract AuthorsCostică Mustăţa Tiberiu Popoviciu Institute of Numerical Analysis, Romanian Academy, Romania Keywords? Paper coordinatesC. Mustăţa, Extension and approximation of…
Best uniform approximation of a bounded function by extensions of semi-Lipschitz functions
Abstract In this note we consider the problem of best uniform approximation of a real valued bounded function \(f\) defined…
Academician professor Dimitrie D. Stancu at his 80th birthday anniversary
Abstract AuthorsPetru Blaga Department of Mathematics Babes-Bolyai University, Cluj-Napoca, Romania Octavian Agratini Department of Mathematics Babes-Bolyai University, Cluj-Napoca, Romania Keywords?…
Localization of critical points via mountain pass type theorems
AbstractREZUMAT: Metode itera\U{21b}iior monotone pentru problema cu valori ini\U{21b}iale relativ\u{a} la o ecua\U{21b}ie integral\u{a} din biomatematic\u{a}. \^{I}n lucrare este prezentat\u{a}…
A compression type mountain pass theorem in conical shells
AbstractIn this paper we present a compression type version of the mountain pass lemma in a conical shell with respect…
Domain invariance theorems for contractive type maps
AbstractNew domain invariance theorems are presented for nonlinear contractions on spaces with two metrics. AuthorsBavi P. Agarwal Department of Mathematical…
Nonuniform nonresonance for nonlinear boundary value problems with y′ dependence
Abstract A new nonuniform nonresonant result at the first eigenvalue is presented for the boundary value problem \(\ y^{\prime \prime}+q\…
Homotopy method for positive solutions of p-Laplace inclusions
AbstractIn this paper the compression-expansion fixed point theorems are extended to operators which are compositions of two multi-valued nonlinear maps…
Semilinear evolution equations with nonlocal initial conditions
AbstractWe are concerned with the study of semilinear evolution equations with nonlocal initial conditions. We provide sufficient conditions on the…