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Title: Countable spaces and countable dynamics
Author: Perez Flores, Dolores Columba
ISNI:       0000 0004 7230 6236
Awarding Body: University of Birmingham
Current Institution: University of Birmingham
Date of Award: 2018
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In this work we present results on three different topics. In the first of them, we consider the following situation: given a pair of functions f:X→Y and g:X→Z, under which conditions can we find compact Hausdorff topologies on X, Y and Z with respect to which f and g are simultaneously continuous? We give a partial solution to the problem, solution that involves the One-point Compactification of a discrete space topology. Secondly, we extend the body of existing results on countable dynamical systems, which arise naturally in many dynamical settings. Among other results, we prove that these systems are ubiquitous in interval maps. The third part of this thesis is devoted to the study of the ordering by embeddability as a closed subset of closed sets of the real line. We characterise the poset 2^R/~, where ~ denotes the mentioned relation. The structure of countable compact Hausdorff spaces is the underlying notion that unifies this work.
Supervisor: Not available Sponsor: National Council of Science and Technology (CONACYT) ; Mexican Secretariat of Public Education (SEP)
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: QA Mathematics