Yukawa: the man and the potential3 months agoAbstract AuthorsMira-Cristiana Anisiu Tiberiu Popoviciu Institute of Numerical Analysis, Romanian Academy Keywords? Paper coordinatesM.C. Anisiu, Yukawa: the man and the…
Sandwich theorems for radiant functions2 years agoAbstract We show that between two graphs, one of a radiant function and the other of a coradiant, both defined…
On a property of moduli of smoothness and K-functionals3 years agoAbstract A new property of moduli of smoothness associated to functions belonging to some certain spaces is revealed. In terms…
Uniform approximation of some classes of linear positive operators expressed by series3 years agoAbstract The paper dealswith a general class of linear positive approximation processes designed using series. For continuous and bounded functions…
A sequence of positive linear operators associated with an approximation process3 years agoAbstract Considering a general class of discrete linear positive operators, by using a one-to-one function, we associate to the class…
Kantorovich sequences associated to general approximation processes3 years agoAbstract Starting from a general sequence of linear positive operators of discrete type we indicate a method to associate its…
A topological approach to the existence and multiplicity of positive solutions of (p,q)-Laplacian systems3 years agoAbstractIn this paper we develop a new theory for the existence, localization and multiplicity of positive solutions for a class…
Existence results for systems with nonlinear coupled nonlocal initial conditions3 years agoAbstractThe purpose of the present paper is to study the existence of solutions to initial value problems for nonlinear first…
A unified existence theory for evolution equations and systems under nonlocal conditions3 years agoAbstractWe investigate the effect of nonlocal conditions expressed by linear continuous mappings over the hypotheses which guarantee the existence of…
Variational properties of the solutions for second-order differential equations and systems on semi-line3 years agoAbstractIn this article, an abstract theory regarding variational properties of the fixed points of contractions and Perov contractions is applied…