Centre for Mathematics, University of Coimbra

<Reference List>
Type:	Preprint
National /International:	International
Title:	Infinite-vertex free profinite semigroupoids and symbolic dynamics
Publication Date:	2007
Authors:	- Jorge Almeida - Alfredo Costa
Abstract:	Some fundamental questions about infinite-vertex (free) profinite semigroupoids are clarified, putting in evidence differences with the finite-vertex case. This is done with examples of free profinite semigroupoids generated by the graph of a subshift. It is also proved that for minimal subshifts, the infinite edges of such free profinite semigroupoids form a connected compact groupoid.
Institution:	DMUC 07-22
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