Enrico Giusti

{{Short description|Italian mathematician (1940–2024)}}

{{Use dmy dates|date=March 2024}}

{{Infobox scientist

| name = Enrico Giusti

| image = Enrico Giusti (2003).jpg

| caption = Giusti in 2003

| birth_date = {{Birth date|df=y|1940|10|28}}

| birth_place = Priverno, Italy

| death_date = {{Death date and age|df=y|2024|3|26|1940|10|28}}

| death_place = Florence, Italy

| nationality = Italian

| field = Calculus of variations, Partial differential equations

| work_institution = Università di Firenze

| alma_mater = Università di Firenze

| doctoral_advisor =

| doctoral_students =

| known_for = Calculus of variations, Regularity theory, Minimal Surfaces

| prizes = Caccioppoli Prize (1978)

| footnotes =

}}

Enrico Giusti (28 October 1940 – 26 March 2024) was an Italian mathematician mainly known for his contributions to the fields of calculus of variations, regularity theory of partial differential equations, minimal surfaces and history of mathematics. He was professor of mathematics at the Università di Firenze;{{cite web|url=http://www.math.unifi.it/schedapersonale?p=1187|title=Scheda Personale | DiMaI - Dipartimento di Matematica e Informatica "Ulisse Dini"|publisher=math.unifi.it|accessdate=21 July 2016}} he also taught and conducted research at the Australian National University at Canberra, at the Stanford University and at the University of California, Berkeley.{{Cite web |url=http://www.matematicamente.it/cultura/interviste_a_matematici/intervista_a_enrico_giusti_200710081784/ |title=Intervista a Enrico Giusti | per, Matematica, non, Nel | Matematicamente.it |access-date=23 August 2011 |archive-url=https://web.archive.org/web/20110927143901/http://www.matematicamente.it/cultura/interviste_a_matematici/intervista_a_enrico_giusti_200710081784/ |archive-date=27 September 2011 |url-status=dead }} After retirement, he devoted himself to the managing of the "Giardino di Archimede",{{Cite web |url=http://web.math.unifi.it/archimede/archimede/index.html |title=Il giardino di Archimede. Un Museo per la Matematica |access-date=23 August 2011 |archive-url=https://web.archive.org/web/20110826092427/http://web.math.unifi.it/archimede/archimede/index.html |archive-date=26 August 2011 |url-status=dead }} a museum entirely dedicated to mathematics and its applications. Giusti was also the editor-in-chief of the international journal dedicated to the history of mathematics Bollettino di storia delle scienze matematiche (Bulletin of the history of the mathematical sciences).{{cite web|url=http://www.libraweb.net/riviste.php?chiave=92|title=LibraWeb - The Online Integrated Platform of Fabrizio Serra editore, Pisa-Roma|publisher=libraweb.net|accessdate=21 July 2016}}{{cite web|url=http://php.math.unifi.it/archimede/archimede/bollettino/bollettino.php|title=Il giardino di Archimede|publisher=php.math.unifi.it|accessdate=21 July 2016}}

One of Giusti's most famous results, obtained with Enrico Bombieri and Ennio De Giorgi, concerned the minimality of Simons' cones, and made it possible to disprove the validity of Bernstein's theorem in dimensions larger than 8. The work on minimal surfaces was mentioned in the citation of the Fields Medal eventually awarded to Bombieri in 1974.

Giusti had a sustained interest in the history of mathematics, e.g. the mathematics of Pierre de Fermat (see Giusti 2009). At the time of his death, he was the director of the Garden of Archimedes, a museum devoted to mathematics in Florence, Italy.[http://www.eosdev.it/Esperienze/GiardinoArchimede/ Il Giardino Di Archimede] {{Webarchive|url=https://web.archive.org/web/20160222032803/http://eosdev.it/Esperienze/GiardinoArchimede/ |date=22 February 2016 }} EOS: IT solutions for the enterprise

Giusti died in Florence on 26 March 2024, at the age of 83.{{cite news |title=Lutto nel mondo scientifico: è morto il grande matematico Enrico Giusti |url=https://www.lanazione.it/cronaca/lutto-nel-mondo-scientifico-e-morto-il-grande-matematico-enrico-giusti-ruia3y2w |access-date=28 March 2024 |publisher=La Nazione |date=28 March 2024}}