{{Short description|Italian mathematician and LGBT activist}}
{{family name hatnote|Antei|lang=Italian}} {{Infobox scientist | name = Marco Antei | birth_date = {{Birth date and age|1978|3|2|df=y}} | birth_place = Sanremo | image = | caption = | workplaces = University of Lille, Max Planck Institute for Mathematics, KAIST, Ben-Gurion University of the Negev, Côte d'Azur University, University of Costa Rica, Lucerne University of Applied Sciences and Arts | alma_mater = University of Lille | thesis_title = Extension de torseurs | thesis_year = 2008 | thesis_url = https://www.theses.fr/2008LIL10056/document }}'''Marco Antei''' (born 1978, Sanremo) is an Italian mathematician and LGBT+ activist.
== Career ==
Antei was awarded his PhD in mathematics in 2008 from the University of Lille<ref>Extension de torseurs, PhD Thesis, University of Lille, 2008.</ref> under the supervision of Michel Emsalem. He later worked at the Max Planck Institute for Mathematics in Bonn, the KAIST in Daejeon, the Ben-Gurion University of the Negev in Beersheba, the Côte d'Azur University in Nice before joining the University of Costa Rica.<ref>{{cite web |url=https://vinv.ucr.ac.cr/sigpro/web/researchers/138000248128 |title = UCR website}}</ref> He has been lecturer at Lucerne University of Applied Sciences and Arts since 2022. Antei studies within the field of geometry. His areas of interest in research focus on algebraic and arithmetic geometry, and applications. He particularly studies the fundamental group scheme, torsors and their connections.
== The fundamental group scheme == The existence of the fundamental group scheme was conjectured by Alexander Grothendieck, while the first proof of its existence is due, for schemes defined over fields, to Madhav Nori.<ref name=":Nori">{{cite journal | last = Nori | first = Madhav V. | title =On the Representations of the Fundamental Group | journal = Compositio Mathematica | volume = 33 | year = 1976 | issue = 1 | pages = 29–42 | mr = 417179 | url = https://www.numdam.org/item/CM_1976__33_1_29_0.pdf|zbl=0337.14016}}</ref><ref name=":Nori 2">{{cite journal |doi=10.1007/BF02967978|title=The fundamental group-scheme |year=1982 |last1=Nori |first1=Madhav V. |journal=Proceedings Mathematical Sciences |volume=91 |issue=2 |pages=73–122 |s2cid=121156750 }}</ref><ref>{{cite book |doi=10.1017/CBO9780511627064|title=Galois Groups and Fundamental Groups |year=2009 |last1=Szamuely |first1=Tamás |isbn=9780521888509 }}</ref> Antei, Michel Emsalem and Carlo Gasbarri proved the existence of the fundamental group scheme <math>\pi_1(X,x)</math> for schemes defined over Dedekind schemes and they also defined, and proved the existence of, the ''quasi-finite fundamental group scheme'' <math>\pi^{\text{qf}}(X,x)</math>.<ref name=":Dedekind">{{cite journal |doi=10.46298/epiga.2020.volume4.5436|arxiv=1504.05082|title=Sur l'existence du schéma en groupes fondamental |year=2020 |last1=Antei |first1=Marco |last2=Emsalem |first2=Michel |last3=Gasbarri |first3=Carlo |journal=Épijournal de Géométrie Algébrique |s2cid=227029191 }}</ref><ref>{{cite journal |doi=10.1215/00127094-2020-0065|title=Erratum for "Heights of vector bundles and the fundamental group scheme of a curve" |year=2020 |last1=Antei |first1=Marco |last2=Emsalem |first2=Michel |last3=Gasbarri |first3=Carlo |journal=Duke Mathematical Journal |volume=169 |issue=16 |s2cid=225148904 }}</ref>
== Award ==
In 2020, Antei received the ''Innovating professor'' award at the University of Costa Rica, for being able to move from in presence classes to virtual classes, at the beginning of the COVID-19 pandemic, in the best possible way. The awarded professors have been selected by the students of the UCR.<ref>{{cite web |last=Spagnolo |first=Alice |date=2020-12-10 |title=Imperia, anche al professore Marco Antei un riconoscimento per l'impegno nella didattica a distanza, Riviera24 |url=https://www.riviera24.it/2020/12/imperia-anche-al-professore-marco-antei-un-riconoscimento-per-limpegno-nella-didattica-a-distanza-661878/ |access-date=2025-07-14 |website=riviera24.it}}</ref><ref>{{cite web |last=Richmond |first=Karla |date=2020-12-10 |title=Docentes obtuvieron reconocimiento por su labor en virtualidad |url=https://www.ucr.ac.cr/noticias/2020/12/10/docentes-obtuvieron-reconocimiento-por-su-labor-en-virtualidad.html |access-date=2025-07-14 |website=ucr.ac.cr}}</ref>
== Activism == Antei stands out for his commitment to the fight for the rights of the LGBT+ community. In particular, in 2015 he conceived and co-founded the first LGBT+ association in the province of Imperia, M.I.A. (''Movimento Imperiese Arcobaleno''), the Arcigay Imperia local committee, affiliated with Italy's largest LGBT+ association, Arcigay. He served as president until 2018,<ref>{{cite web |url=https://www.lastampa.it/imperia-sanremo/2016/05/18/news/unioni-civili-ventimiglia-prontaantei-la-legge-un-passo-avanti-1.35006209/ |title=Unioni civili, Ventimiglia pronta {{!}} Antei: "La legge? Un passo avanti" |website=La Stampa |date=2016-05-18 |access-date=2024-08-17 |archive-url=https://web.archive.org/web/20220728031109/https://www.lastampa.it/imperia-sanremo/2016/05/18/news/unioni-civili-ventimiglia-prontaantei-la-legge-un-passo-avanti-1.35006209/ |archive-date=2022-07-28 |url-status=live}}</ref><ref>{{cite web |url=https://www.primocanale.it/archivio-news/160705--stesso-amore-stessi-diritti-incontro-a-imperia-sui-diritti-delle-coppie-omosessuali.html |title="Stesso amore, stessi diritti", incontro a Imperia sui diritti delle coppie omosessuali |website=Primocanale.it |date=2015-09-25 |access-date=2024-08-17 |archive-url=https://web.archive.org/web/20220725175510/https://www.primocanale.it/archivio-news/160705--stesso-amore-stessi-diritti-incontro-a-imperia-sui-diritti-delle-coppie-omosessuali.html |archive-date=2022-07-25 |url-status=live}}</ref> and then again from January 2023.<ref>{{cite web |url=https://www.lastampa.it/imperia-sanremo/2023/01/06/news/arcigay_imperia_chiamatemi_la_signora_presidente-12450127/ |title=Arcigay Imperia: "Chiamatemi la Signora Presidente" |last=Borghi |first=Daniela |website=La Stampa |date=2023-01-06 |access-date=2024-08-17 |archive-url=https://web.archive.org/web/20230813180132/https://www.lastampa.it/imperia-sanremo/2023/01/06/news/arcigay_imperia_chiamatemi_la_signora_presidente-12450127/ |archive-date=2023-08-13 |url-status=live}}</ref> He definitively left the office in December 2025. During his first term, he also co-organized in November 2016 the first Transgender Day of Remembrance in the city of Sanremo. In 2020, he took part in a remote meeting with European Commission President Ursula von der Leyen, in which the rights of LGBT+ people within the European Union were discussed, with particular emphasis on the situations in Hungary and Poland.<ref>{{cite web |url=https://www.ilsecoloxix.it/imperia/2020/09/25/news/l-imperiese-antei-di-arcigay-l-unico-italiano-selezionato-a-cui-ha-risposto-a-von-der-leyen-puniremo-le-discriminazioni-1.39349047/ |title=L'imperiese Antei di Arcigay l'unico italiano selezionato a cui ha risposto a Von Der Leyen: «Puniremo le discriminazioni» |website=Il Secolo XIX |date=2020-09-25 |access-date=2024-08-17 |archive-url=https://web.archive.org/web/20200929162504/https://www.ilsecoloxix.it/imperia/2020/09/25/news/l-imperiese-antei-di-arcigay-l-unico-italiano-selezionato-a-cui-ha-risposto-a-von-der-leyen-puniremo-le-discriminazioni-1.39349047/amp/ |archive-date=2020-09-29 |url-status=live}}</ref><ref>{{cite web |url=https://www.youtube.com/watch?v=vM1r2fMpUhI |title=Ask the President - Ep1: Questions by Marco |website=YouTube |access-date=2024-08-17 |url-status=live}}</ref> During his final term, the association under his presidency, in collaboration with Agedo Genova, created the ''Premio Queer'', an award unofficially linked to the Sanremo Music Festival.<ref>{{cite web |url=https://www.cosmopolitan.com/it/lifestyle/musica/a63770062/premio-queer-lgbt-sanremo-2025/ |title=Che cos'è il Premio Queer per non dimenticare la comunità LGBT+ a Sanremo 2025 |website=Cosmopolitan |date=2025-02-12 |access-date=2026-02-20 |url-status=live}}</ref>
== References == <!-- Inline citations added to your article will automatically display here. See en.wikipedia.org/wiki/WP:REFB for instructions on how to add citations. --> {{reflist}} {{Authority control}} {{DEFAULTSORT:Antei, Marco}} Category:20th-century Italian mathematicians Category:21st-century Italian mathematicians Category:Living people Category:University of Lille Nord de France alumni Category:Italian LGBTQ rights activists Category:1978 births