Zobrazeno 1 - 10
of 96
pro vyhledávání: '"Alejandro Illanes"'
Publikováno v:
Applied General Topology, Vol 23, Iss 2, Pp 235-242 (2022)
Let X be a metric continuum and n a positive integer. Let Fn (X) be the hyperspace of nonempty subsets of X with at most n points. If 0 < m < n, we consider the quotient space Fnm (X) = Fn (X)/Fm (X). Given a mapping f from X into X, we consider the
Externí odkaz:
https://doaj.org/article/b86c932a81f5455dbb6bb245caa0afca
Publikováno v:
International Journal of Mathematics and Mathematical Sciences, Vol 2004, Iss 55, Pp 2927-2936 (2004)
Externí odkaz:
https://doaj.org/article/792db3491ddd4a5c95b4b748b8edfba9
Autor:
Alejandro Illanes
Publikováno v:
Colloquium Mathematicum. 163:53-69
Publikováno v:
Topology and its Applications. 320:108242
Publikováno v:
Topology and its Applications. 310:108006
Publikováno v:
Topology and its Applications. 243:52-64
Given a continuum X , let F n ( X ) denote the hyperspace of nonempty subsets of X with at most n points. For n ≥ 2 , let S F n ( X ) = F n ( X ) / F 1 ( X ) be the quotient space. Given a mapping between continua f : X → Y , we consider the indu
Publikováno v:
Topology and its Applications. 241:172-184
Let X and Y be metric continua. We consider the following property (*): if M is a subcontinuum of X × Y such that π X ( M ) = X and π Y ( M ) = Y , where π X and π Y are the respective projections on X and Y, then M has small connected neighborh
Publikováno v:
Colloquium Mathematicum. 152:45-53
Publikováno v:
Topology and its Applications. 301:107511
A continuum X has unique cone provided that the following property holds: if Y is a continuum and c o n e ( X ) is homeomorphic to c o n e ( Y ) , then X is homeomorphic to Y. A fan is an arcwise continuum with exactly one ramification point having t
Autor:
Rocío Leonel, Alejandro Illanes
Publikováno v:
Topology and its Applications. 231:136-158
We show two metric continua X and Z and a monotone surjective mapping f : X → Z such that the Jones' function T is continuous for X, but it is not continuous for Z. This answers a question by D. P. Bellamy.