A solvable version of the inverse problem of dynamics
Abstract The particular version of the inverse problem of dynamics considered here is: given the ‘slope function’ \(\gamma =f_{y}/f_{x}\), representing…
2005
On the extension of semi-Lipschitz functions on asymmetric normed spaces
Abstract AuthorsCostică Mustăţa “Tiberiu Popoviciu” Institute of Numerical Analysis, Romanian Academy, Romania Keywords? Paper coordinatesC. Mustăţa, On the extension of…
Rate of convergence of a class of Bézier type operators for functions of bounded variation
Abstract By using probability methods we introduce a general a class of Bezier type linear operators. The aim of the…
On the rate of convergence of some integral operators for functions of bounded variation
Abstract In the present paper we define a general class \(B_{n,\alpha},\alpha\) \(\geq1\), of Durrmeyer-Bezier type of linear positive operators. Our…
Quantitative approximations by using scaling type functions
Abstract The focus of the paper is to study a class of linear positive operators constructed by using a quasi-scaling…
Construction of upper and lower solutions with applications to singular boundary value problems
Abstract An upper and lower solution theory is presented for the Dirichlet boundary value problem \(y^{\prime\prime}+f(t,y,y^{\prime})=0\), \(0<t <1\) with \(y(0)=y(1)=0\).…
Existence and localization results for semi-linear problems
AbstractThis survey paper presents the new method worked out in [14] and [15] for the existence and localization of solutions…
Compression-expansion fixed point theorems in two norms
AbstractIn this paper we present compression-expansion fixed point theorems in cones where the compression and the expansion conditions are expressed…
Boundary value problems arising in the percolation of water from a cylindrical reservoir into the surrounding soil
Abstract Existence results are established for a general class of second-order boundary value problems motivated from a problem arising in…
Compression-expansion fixed point theorem in two norms and applications
Abstract In this paper we present a two-norms version of Krasnoselskii’s fixed point theorem in cones. The abstract result is…