What is Ludvig Faddeev?
[[File:Ludvig Faddejev (cropped).jpg|thumb|right|200px|Faddeev in August 2010]] '''Ludvig Dmitrievich Faddeev''' (also ''Ludwig Dmitriyevich''; {{lang-ru|Лю́двиг Дми́триевич Фадде́ев}}) (23 March 1934 – 26 February 2017) was a [[USSR|Soviet]] and [[Russia]]n [[theoretical physicist]] and [[mathematician]]. He discovered of the [[Faddeev equations]] in the theory of the quantum mechanical [[three-body problem]] and for the development of [[path integral formulation|path integral]] methods. Faddeev was born in [[Leningrad]]. He studied at [[Saint Petersburg State University]]. Faddeev led the Leningrad School, in which he along with many of his students developed the [[quantum inverse scattering method]] for studying [[quantum integrable systems]] in one space and one time dimension. This work led to the invention of [[quantum group]]s by [[Vladimir Drinfeld|Drinfeld]] and [[Michio Jimbo|Jimbo]]. From 1976 to 2000, Faddeev was head of the [[St. Petersburg Department of Steklov Institute of Mathematics of Russian Academy of Sciences]] (PDMI RAS).<ref name=FOOTNOTESSteklov>{{cite web |title = St. Petersburg Department of V. A. Steklov Institute of Mathematics of the Russian Academy of Sciences |url = http://www.pdmi.ras.ru/eng/institut/institut.php |access-date = 5 February 2011 }}</ref> He was elected a member of the [[Academia Europaea]] in 1989.<ref>{{cite web|url=http://www.ae-info.org/ae/Member/Faddeev_Ludwig |archive-url=https://web.archive.org/web/20190328104806/https://www.ae-info.org/ae/Member/Faddeev_Ludwig |title=Ludwig D. Faddeev |publisher=Academia Europaea |archive-date=28 March 2019}}</ref> Faddeev died on 26 February 2017 in [[St. Petersburg]], Russia at the age of 82.<ref>[http://www.vladtime.ru/nauka/547740 Академик Людвиг Фаддеев ушел из жизни на 83-м году жизни] {{Webarchive|url=https://web.archive.org/web/20170227062534/http://www.vladtime.ru/nauka/547740 |date=2017-02-27 }} {{in lang|ru}}</ref> ==References== {{reflist}} {{bio-stub}} {{authority control}} {{DEFAULTSORT:Faddeev, Ludvig