Results 41 to 50 of about 5,220 (150)
An Entourage Approach to the Contraction Principle in Uniform Spaces Endowed with a Graph [PDF]
, 2013 In this paper, we study Banach contractions in uniform spaces endowed with a graph and give some sufficient conditions for a mapping to be a Picard operator. Our main results generalize some results of [J.
Aghanians, A., Fallahi, K., Nourouzi, K.
core
Standard monomial theory for wonderful varieties
, 2015 A general setting for a standard monomial theory on a multiset is introduced and applied to the Cox ring of a wonderful variety. This gives a degeneration result of the Cox ring to a multicone over a partial flag variety.
A. Maffei +28 more
core +1 more source
International Journal of Art &Design Education, EarlyView.Abstract This narrative review examines the relationship between the size of children's drawings and their expressed emotions about the depicted subjects, focusing on research conducted between 1988 and 2023. The studies are presented chronologically to demonstrate how researchers have progressively addressed methodological challenges identified in ...
Elpida Kypraiou, Fotini Bonoti
wiley +1 more source
On the convergence of Lupaş (p,q) $(p,q)$-Bernstein operators via contraction principle
Journal of Inequalities and Applications, 2019 The present paper deals with the limit behavior of iterates of Lupaş q- and (p,q) $(p,q)$-Bernstein operators. We obtain the convergence for Lupaş q- and (p,q) $(p,q)$-Bernstein operators by using the contraction principle.
Haifa Bin Jebreen +2 more
doaj +1 more source
Unequal Solidarity: Club Rules and Crisis Support in the European Polity
JCMS: Journal of Common Market Studies, EarlyView.Abstract Is European solidarity during crises due to common or close identities? Or do Europeans punish rule‐breaking countries by showing them less solidarity? Research on the determinants of European solidarity increasingly focuses on ‘solidarity to’, how givers' attitudes are shaped by their perceptions of receiving member states.
Zbigniew Truchlewski +2 more
wiley +1 more source
A Volterra functional-integral equation, via weakly Picard operators technique [PDF]
Carpathian Journal of Mathematics, 2014 In this paper we consider a Volterra functional-integral equation with linear modifications of the arguments. We use weakly Picard operators’ technique and we obtain existence and data dependence results for the solutions.
openaire +1 more source
Krasnoselskii's theorem in generalized Banach spaces and application
Electronic Journal of Qualitative Theory of Differential Equations, 2012 The purpose of this paper is to extend Krasnoselskii's fixed point theorem to the case of generalized Banach spaces for singlevalued and multivalued operators.
I. R. Petre, Adrian Petrusel
doaj +1 more source
The Core‐Periphery Model Under Additively Separable Preferences
Journal of Regional Science, Volume 65, Issue 2, Page 378-402, March 2025.ABSTRACT This paper reexamines Krugman's core‐periphery model by substituting his constant elasticity of substitution (CES) utility with a general additively separable utility that comprehensively captures the pro‐competitive effect while preserving the income effect.
Congcong Wang, Dao‐Zhi Zeng, Xiwei Zhu
wiley +1 more source
Differential equations with modified argument, via weakly Picard operators’ theory [PDF]
Carpathian Journal of Mathematics, 2013 In this paper we use Picard and weakly Picard operators technique, introduced by Ioan A. Rus, to study a class of differential equations with modified argument and a boundary value problem for this kind of equations. We obtain existence, uniqueness, comparison and data dependence results.
openaire +1 more source
Integrable hierarchies and the mirror model of local CP1
, 2011 We study structural aspects of the Ablowitz-Ladik (AL) hierarchy in the light of its realization as a two-component reduction of the two-dimensional Toda hierarchy, and establish new results on its connection to the Gromov-Witten theory of local CP1.
Brini, Andrea +2 more
core +1 more source