2005

Persistence of planetary rings under the influence of the anisotropically re-emitted solar radiation

12 months ago

Abstract The solar radiation has a destabilizing influence on planetary rings. The shepherding satellites explain the persistence of these structures,…

Symmetric periodic orbits in the anisotropic Schwarzschild-type problem

12 months ago

Abstract Studying the two-body problem associated to an anisotropic Schwarzschild-type field, Mioc et al. (2003) did not succeed in proving…

A solvable version of the inverse problem of dynamics

12 months ago

Abstract The particular version of the inverse problem of dynamics considered here is: given the ‘slope function’ \(\gamma =f_{y}/f_{x}\), representing…

On the extension of semi-Lipschitz functions on asymmetric normed spaces

2 years ago

Abstract Extension theorems for semi-Lipschitz functions and some proper- ties of these extensions useful in approximation problems are presented. As…

Rate of convergence of a class of Bézier type operators for functions of bounded variation

3 years ago

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

3 years ago

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

3 years ago

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

3 years ago

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

3 years ago

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

3 years ago

AbstractIn this paper we present compression-expansion fixed point theorems in cones where the compression and the expansion conditions are expressed…

2005

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