AbstractIt is proved that if a continuum X contains an Ri-continuum for some iϵ{1,2,3}, then the hyperspaces 2x and C(X) contain Ri-continua, therefore they are not contractible. Moreover, 2x has no confluent Whitney map. Some examples concerning this subject are given and som
Abstract. The existence of an N-sequence in a continuum is an obstruction that implies noncontractib...
AbstractLet X be a continuum, let C(X) be the hyperspace of subcontinua of X. Answering questions by...
AbstractIn 1939 M. Wojdysławski showed that a continuum X is locally connected if and only if for ea...
It is proved that if a continuum X contains an Ri-continuum for some iϵ{1,2,3}, then the hyperspaces...
In this paper we discuss the notions of pseudo-contractibility and weak contractibility on hyperspac...
In this paper we discuss the notions of pseudo-contractibility and weak contractibility on hyperspac...
Let X be a metric continuum. Consider the assertions: a) X contains an Ra-continuum, b) The hyperspa...
Let X be a metric continuum. Denote by 2 X and C(X) the hyperspaces of nonempty closed subsets and n...
ARTÍCULO DE INVESTIGACIÓN FINANCIADO A TRAVÉS DE PROYECTOS UAEMEXIn this paper we discuss the notion...
ARTÍCULO DE INVESTIGACIÓN FINANCIADO A TRAVÉS DE PROYECTOS UAEMEXIn this paper we discuss the notion...
AbstractWe show that there are Whitney maps on the 2-cell such that Whitney continua in the hyperspa...
Let X be a nonvoid metric continuum. Denote by 2X and C(X) the hyperspaces of nonempty closed subset...
Let X be a nonvoid metric continuum. Denote by 2X and C(X) the hyperspaces of nonempty closed subset...
A characterization of Cp(X), the family of subcontinua of X containing a fixed point of X, when X i...
A characterization of Cp(X), the family of subcontinua of X containing a fixed point of X, when X i...
Abstract. The existence of an N-sequence in a continuum is an obstruction that implies noncontractib...
AbstractLet X be a continuum, let C(X) be the hyperspace of subcontinua of X. Answering questions by...
AbstractIn 1939 M. Wojdysławski showed that a continuum X is locally connected if and only if for ea...
It is proved that if a continuum X contains an Ri-continuum for some iϵ{1,2,3}, then the hyperspaces...
In this paper we discuss the notions of pseudo-contractibility and weak contractibility on hyperspac...
In this paper we discuss the notions of pseudo-contractibility and weak contractibility on hyperspac...
Let X be a metric continuum. Consider the assertions: a) X contains an Ra-continuum, b) The hyperspa...
Let X be a metric continuum. Denote by 2 X and C(X) the hyperspaces of nonempty closed subsets and n...
ARTÍCULO DE INVESTIGACIÓN FINANCIADO A TRAVÉS DE PROYECTOS UAEMEXIn this paper we discuss the notion...
ARTÍCULO DE INVESTIGACIÓN FINANCIADO A TRAVÉS DE PROYECTOS UAEMEXIn this paper we discuss the notion...
AbstractWe show that there are Whitney maps on the 2-cell such that Whitney continua in the hyperspa...
Let X be a nonvoid metric continuum. Denote by 2X and C(X) the hyperspaces of nonempty closed subset...
Let X be a nonvoid metric continuum. Denote by 2X and C(X) the hyperspaces of nonempty closed subset...
A characterization of Cp(X), the family of subcontinua of X containing a fixed point of X, when X i...
A characterization of Cp(X), the family of subcontinua of X containing a fixed point of X, when X i...
Abstract. The existence of an N-sequence in a continuum is an obstruction that implies noncontractib...
AbstractLet X be a continuum, let C(X) be the hyperspace of subcontinua of X. Answering questions by...
AbstractIn 1939 M. Wojdysławski showed that a continuum X is locally connected if and only if for ea...
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