This survey paper presents the success story of the topological approach to automata theory. It is based on profinite topologies, which are built from finite topogical spaces. The survey includes several concrete applications to automata theory.
@InProceedings{pin:LIPIcs.STACS.2009.1856, author = {Pin, Jean-Eric}, title = {{Profinite Methods in Automata Theory}}, booktitle = {26th International Symposium on Theoretical Aspects of Computer Science}, pages = {31--50}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-939897-09-5}, ISSN = {1868-8969}, year = {2009}, volume = {3}, editor = {Albers, Susanne and Marion, Jean-Yves}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.STACS.2009.1856}, URN = {urn:nbn:de:0030-drops-18561}, doi = {10.4230/LIPIcs.STACS.2009.1856}, annote = {Keywords: Profinite topology, Regular languages, Uniform space, Finite automata} }
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