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Wyszukujesz frazę "Martinez, Paul" wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Radio numbers for generalized prism graphs
Autorzy:
Martinez, Paul
Ortiz, Juan
Tomova, Maggy
Wyels, Cindy
Powiązania:
https://bibliotekanauki.pl/articles/744118.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
radio number
radio labeling
prism graphs
Opis:
A radio labeling is an assignment c:V(G) → N such that every distinct pair of vertices u,v satisfies the inequality d(u,v) + |c(u)-c(v)| ≥ diam(G) + 1. The span of a radio labeling is the maximum value. The radio number of G, rn(G), is the minimum span over all radio labelings of G. Generalized prism graphs, denoted $Z_{n,s}$, s ≥ 1, n ≥ s, have vertex set {(i,j) | i = 1,2 and j = 1,...,n} and edge set {((i,j),(i,j ±1))} ∪ {((1,i),(2,i+σ)) | σ = -⌊(s-1)/2⌋...,0,...,⌊s/2⌋}. In this paper we determine the radio number of $Z_{n,s}$ for s = 1,2 and 3. In the process we develop techniques that are likely to be of use in determining radio numbers of other families of graphs.
Źródło:
Discussiones Mathematicae Graph Theory; 2011, 31, 1; 45-62
2083-5892
Pojawia się w:
Discussiones Mathematicae Graph Theory
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Validity of Human Rights in Europe in the Wake of the Crisis of Refugees from the Middle East
Autorzy:
Ibarra Martínez, Jorge R.
Cota Navarro, Paul J.
Powiązania:
https://bibliotekanauki.pl/articles/969447.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Warszawski. Centrum Europejskie
Tematy:
Human Rights;
Social Movements;
Refugees;
Opis:
The purpose of this article is to analyse the loss of validity in the principles of universality and equality that lead the international system of Human Rights, in the wake of the refugee crisis that arose in Europe in 2014. The main idea is that the massive arrival of refugees due to the violence in the Middle East revealed severe humanitarian contradictions in the European countries when providing the right to asylum, integration, acknowledgementand i ntercultural dialogue in favour of those affected by the war.T hrough an analysis of the debates that arose in Europe after the arrival of refugees to the continent, this article seeks to evidence the diminishmentin the social support to the values of freedom, international cooperation, multiculturalism and Human Rights; as well as an increase in the xenophobic and isolationist expressions. This work approaches the situation of Human Rights from the theoretical perspective of social movements, bearing in mind that the progressiveincorpor ation of these prerogatives in the national and international legal frameworks, has been encouraged by collective actions that generationally have managed to increase the repertoire of rights that protect human dignity. Nevertheless, the inconvenience now, is that regressive movements have begun to arise nowadays, threatening to move aside institutions that behold the ideal of a liberal and cosmopolitan democracy. To state evidence of such challenge, this work compiles the opinion of the European population in topics that refl ect their point of view on Human Rights. In this context, the research methodology was oriented to discourse analysis of online comments posted by readers of the newspapers with the highest circulation in six European countries, in relation to news that, because of their impact, appalled society and made them take part in the repercussions for their countries.
Źródło:
Studia Europejskie - Studies in European Affairs; 2019, 3; 133-151
1428-149X
2719-3780
Pojawia się w:
Studia Europejskie - Studies in European Affairs
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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