Recursos de colección

RiuNet. Repositorio institucional de la Universitat de Valencia (96.506 recursos)

RiuNet es el Repositorio Institucional de la Universitat Politècnica de València, gestionado por la Biblioteca, cuyo objetivo es ofrecer acceso en Internet a la producción científica, académica y corporativa de la comunidad universitaria con la finalidad de aumentar su visibilidad y hacerla accesible y preservable.

Mostrando recursos 1 - 3 de 3

  1. The dynamical look at the subsets of a group

    Protasov, Igor V.; Slobodianiuk, Serhii
    We consider the action of a group $G$ on the family $\mathcal{P}(G)$ of all subsets of $G$ by the right shifts $A\mapsto Ag$ and give the dynamical characterizations of thin, $n$-thin, sparse and scattered subsets.For $n\in\mathbb{N}$, a subset $A$ of a group $G$ is called $n$-thin if $g_0A\cap\dots\cap g_nA$ is finite for all distinct $g_0,\dots,g_n\in G$.Each $n$-thin subset of a group of cardinality $\aleph_0$ can be partitioned into $n$ $1$-thin subsets but there is a $2$-thin subset in some Abelian group of cardinality $\aleph_2$ which cannot be partitioned into two $1$-thin subsets. We eliminate the gap between $\aleph_0$ and $\aleph_2$...
    - 16-ene-2018

  2. Rational criterion testing the density of additive subgroups of R^n and C^n

    Elghaoui, Mohamed; Ayadi, Adlene
    In this paper, we give an explicit criterion to decide thedensity of finitely generated additive subgroups of R^n and C^n.
    - 10-ene-2018

  3. On cyclic relatively nonexpansive mappings in generalized semimetric spaces

    Gabeleh, Moosa
    In this article, we prove a fixed point theorem for cyclic relatively nonexpansive mappings in the setting of generalized semimetric spaces by using a geometric notion of seminormal structure and then we conclude some results in uniformly convex Banach spaces. We also discuss on the stability of seminormal structure in generalized semimetric spaces.
    - 10-ene-2018

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