Fixed and Best Proximity Points of Cyclic Jointly Accretive and Contractive Self-Mappings

p(>= 2)-cyclic and contractive self-mappings on a set of subsets of a metric space which are simultaneously accretive on the whole metric space are investigated. The joint fulfilment of the p-cyclic contractiveness and accretive properties is formulated as well as potential relationships with cyclic self-mappings in order to be Kannan self-mappings. The existence and uniqueness of best proximity points and fixed points is also investigated as well as some related properties of composed self-mappings from the union of any two adjacent subsets, belonging to the initial set of subsets, to themselves.

Some Results on Fixed and Best Proximity Points of Precyclic Self-Mappings

12 p.

Best Proximity Points of Generalized Semicyclic Impulsive Self-Mappings: Applications to Impulsive Differential and Difference Equations

This paper is devoted to the study of convergence properties of distances between points and the existence and uniqueness of best proximity and fixed points of the so-called semicyclic impulsive self-mappings on the union of a number of nonempty subsets in metric spaces. The convergences of distances between consecutive iterated points are studied in metric spaces, while those associated with convergence to best proximity points are set in uniformly convex Banach spaces which are simultaneously complete metric spaces. The concept of semicyclic self-mappings generalizes the well-known one of cyclic ones in the sense that the iterated sequences built through such mappings are allowed to have images located in the same subset as their pre-image. The self-mappings under study might be in the most general case impulsive in the sense that they are composite mappings consisting of two self-mappings, and one of them is eventually discontinuous. Thus, the developed formalism can be applied to the study of stability of a class of impulsive differential equations and that of their discrete counterparts. Some application examples to impulsive differential equations are also given.

Self-assembly of metallated TPP porphyrin by external dipyridyl ligands

Póster presentado en: XXII International Congress and General Assembly of the International Union of Crystallography (UICr), 22–30 Agosto 2011. Madrid, España

Diseño, implementación y evaluación de material didáctico para Educación Primaria en relación a una visita a una explotación agropecuaria

105 p. : il. - Ilustraciones de Oscar Mardones Ruiz

Udalerri Euskaldunen Mankomunitatea (UEMA) legezkontrakotzat jotzen duen Epaiari buruzko iruzkinak (Auzitegi Goreneko Epaia, 2000.ekoa)

[EU] Artikulu honetan, gaur-gaurkoa dugun gai bat aztertzen da : Udalerri Euskaldunen Mankomunitatea legezkontrakotzat. jotzen duen Epaia. UEMAren oinarri juridikoak aztertu ondoren, Mankomunitate horren ibilbideak izan dituen eragozpenez arduratzen da lan hau. Egilearen ustez, Udalerri Euskaldunen Mankomunitateak bere ibilbidean aurkitu duen handicap-ik nabarmenena, legearen babes falta izan da, eta Auzitegi Goreneko Epaia, bai formaz, bai edukiaren aldetik, oinarri gabekotzat jo behar dela dio.

Baserrietara egindako eskola bisitak: lehen hezkuntzarako material didaktikoen diseinua, ezarpena eta ebaluazioa

58 p.