Displaying similar documents to “Open subgroups of free topological groups”

A relatively free topological group that is not varietal free

Vladimir Pestov, Dmitri Shakhmatov (1998)

Colloquium Mathematicae

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Answering a 1982 question of Sidney A. Morris, we construct a topological group G and a subspace X such that (i) G is algebraically free over X, (ii) G is relatively free over X, that is, every continuous mapping from X to G extends to a unique continuous endomorphism of G, and (iii) G is not a varietal free topological group on X in any variety of topological groups.

Topological Rough Groups

Nurettin Bağırmaz, İlhan İçen, Abdullah F. Özcan (2016)

Topological Algebra and its Applications

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The concept of topological group is a simple combination of the concepts of abstract group and topological space. The purpose of this paper is to combine the concepts of topological space and rough groups; called topological rough groups on an approximation space.

Free topological vector spaces

Joe Flood

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CONTENTSPreface.................................................................................................5Chapter 0. Preliminaries and notation..................................................6PART I. Free topological vector spaces - Introduction..........................9Chapter 1. Universal arrows...............................................................10Chapter 2. Free locally convex topological vector spaces..................12Chapter 3. Free normed spaces........................................................23Chapter...