Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Roberto Pichardo"'
Publikováno v:
Applied General Topology, Vol 24, Iss 1, Pp 169-185 (2023)
For a Tychonoff space X, the lattice UX was introduced in L. A. Pérez-Morales, G. Delgadillo-Piñón, and R. Pichardo-Mendoza, The lattice of uniform topologies on C(X), Questions and Answers in General Topology 39 (2021), 65-71. In the present pa
Externí odkaz:
https://doaj.org/article/fb3bda7123ca4850a4ca5cfb1f9cf465
Publikováno v:
Mathematica Slovaca. 68:431-450
The symbol 𝓢 c (X) denotes the hyperspace of all nontrivial convergent sequences in a Hausdorff space X. This hyperspace is endowed with the Vietoris topology. In the current paper, we compare the cellularity, the tightness, the extent, the disper
Publikováno v:
Topology and its Applications. 229:85-105
The symbol S c ( X ) denotes the hyperspace of all nontrivial convergent sequences in a Hausdorff space X. This hyperspace is endowed with the Vietoris topology. For a given mapping between Hausdorff spaces f : X → Y , define the induced mapping S
Publikováno v:
Topology and its Applications. 175:15-28
A topological space is almost irresolvable if it cannot be written as a countable union of subsets with empty interior. Given a cardinal κ, denote by ( ⋆ κ ) the statement ‘‘the Cantor cube 2 2 κ has a dense subspace of size κ which is almo
Publikováno v:
Topology and its Applications. 161:58-72
A space is said to be 1 2 -homogeneous provided that there are exactly two orbits for the action of the group of homeomorphisms of the space onto itself. Certain conditions on a continuum X are known under which the suspension over X is 1 2 -homogene
Autor:
Roberto Pichardo-Mendoza, Alan Dow
Publikováno v:
Topology and its Applications. 160:2207-2231
We continue the study, started by P. Koszmider, of a class of Boolean algebras, the so-called T - algebras . We prove the following. (1) All superatomic Boolean algebras belong to this class. (2) This class is contained properly in Koppelbergʼs clas
Publikováno v:
Topology and its Applications. 158(14):1795-1801
It is shown that in the model obtained by adding κ many random reals, where κ is a supercompact cardinal, every C ⁎ -embedded subset of a first countable space (even with character smaller than κ ) is C -embedded. It is also proved that if two g
Autor:
Margarita Zavala, Julio Rolón, Gabriel Chavira, José González, Jorge Orozco, Roberto Pichardo
Adolescence is a neuralgic stage in the formation of every human being, generally at this stage is when the middle school level is studied. In 2006 in Mexico incorporated “mentoring" space to assist students in their integration and participation i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26d9f8a80e847627830c4ecb854982a3
Publikováno v:
2013 8th Computing Colombian Conference (8CCC).
The article presents a framework with which you can obtain and store context awareness. This awareness is generated through everyday activities that people do in their own contexts. The information is stored in various tags embedded in everyday objec
Autor:
Pierre G. Lafleur, Rodolfo Barragan, Felipe de Jesús Cerino Córdova, Homero Salas, Julio Laria, Roberto Pichardo, Tomas Lozano, Ana Beatriz Morales
Publikováno v:
Quimica Hoy. 2:4
In this paper, a study on Polypropylene (PP)/bentonite composites is presented. PP/bentonite composites were prepared using 5%, 10% and 25% of concentration in weight of unmodified and modified bentonite filler. The relative leve! of the beta phase o