What is Patrick Dehornoy?
{{infobox scientist | name = Patrick Dehornoy | image = PatrickDehornoy.jpg | birth_date = {{birth date|1952|09|11|}} | birth_place = [[Rouen]], [[France]] | death_date = {{death date and age|2019|09|4|1952|09|11}} | death_place = [[Caen]], France | nationality = [[France|French]] | alma_mater = [[École Normale Supérieure]] | fields = Mathematics | workplaces = [[University of Caen]] }} '''Patrick Dehornoy''' (September 11, 1952 &ndash; September 4, 2019) was a French mathematician. He worked at the [[University of Caen]]. He found one of the first applications of [[large cardinal]]s to algebra. This was called the [[Dehornoy order]], on the [[braid group]]. He was one of the main workers to the development of [[Garside element|Garside methods]] in group theory. His works helped solved the [[Word problem for groups|word problem]] of general [[Artin-Tits group|Artin–Tits group]]s. Dehornoy died on September 4, 2019 in [[Caen]], France at the age of 66.<ref>[https://smf.emath.fr/actualites-smf/deces-de-patrick-dehornoy Décès de Patrick Dehornoy 1952-2019] {{in lang|fr}}</ref> ==References== {{reflist}} ==Other websites== *{{cite web|url=https://dehornoy.users.lmno.cnrs.fr/|title=Home page of Patrick Dehornoy|access-date=2019-09-05|archive-date=2019-09-05|archive-url=https://web.archive.org/web/20190905194558/https://dehornoy.users.lmno.cnrs.fr/|url-status=dead}} {{bio-stub}} {{DEFAULTSORT:Dehornoy, Patrick}} [[Category:1952 births]] [[Category:2019 deaths]] [[Category:French mathematicians]] [[Category:French academics]] [[Category:People from Rouen]]