Marcelo Viana

{{Short description|Brazilian mathematician}}

{{Infobox scientist

|name = Marcelo Viana

|image = Marcelo Viana.jpg

|image_size =

|caption =

|birth_date = {{Birth date and age|1962|3|4}}

|death_date =

|birth_place = Rio de Janeiro, Brazil

|death_place =

|residence =

|fields = Mathematics

|workplaces = Instituto Nacional de Matemática Pura e Aplicada

|alma_mater = University of Porto (B. Sc.)
IMPA (Ph. D.)

|doctoral_advisor = Jacob Palis

|academic_advisors =

|doctoral_students = Carlos Matheus

|notable_students =

| thesis_title = Strange Attractors in Higher Dimensions

| thesis_year = 1990

| thesis_url = http://w3.impa.br/~viana/out/thesis.pdf

|known_for = Zorich–Kontsevich conjecture

|author_abbrev_bot =

|author_abbrev_zoo =

|influences =

|influenced =

|awards = ICTP Ramanujan Prize (2005)
Brazil's National Order of Scientific Merit
Grand Prix scientifique de la Fondation Louis D. (2016)[http://grands-prix.institut-de-france.fr/sites/grands-prix.institut-de-france.fr/files/cp_louisd_2.pdf Institut de France: "LE GRAND PRIX SCIENTIFIQUE DE LA FONDATION LOUIS D. 2016 REMIS À FRANÇOIS LABOURIE ET MARCELO VIANA"] (in French)

|signature =

|footnotes =

}}

Marcelo Miranda Viana da Silva (born 4 March 1962) is a Brazilian mathematician working in dynamical systems theory.{{cite web|url=http://www.abc.org.br/~viana|title=Marcelo Miranda Viana da Silva|website=www.abc.org.br|archive-url=https://web.archive.org/web/20171005201144/http://www.abc.org.br/~viana|archive-date=2017-10-05|url-status=dead}}{{cite web|url=http://www.abelprize.no/nyheter/vis.html?tid=46154|title=News: Viana received the first Ramanujan Prize|website=www.abelprize.no|access-date=2014-12-05|archive-date=2017-09-28|archive-url=https://web.archive.org/web/20170928005902/http://www.abelprize.no/nyheter/vis.html?tid=46154|url-status=dead}} He proved the Zorich–Kontsevich conjecture together with Artur Avila.

He was a Guggenheim Fellow in 1993.{{cite web|url=http://www.gf.org/fellows/all-fellows/marcelo-viana/|title=John Simon Guggenheim Foundation - Marcelo Viana|website=www.gf.org}} He received the TWAS Prize in 1998{{Cite web |url=http://twas.org/opportunities/prizes-and-awards |title=Prizes and Awards |date=2016 |publisher=The World Academy of Sciences}} and in 2005 he was awarded the inaugural ICTP Ramanujan Prize for his research achievements.

Viana was vice-president of the International Mathematical Union in 2011–2014, and president of the Brazilian Mathematical Society (2013–2015).{{cite web|url=http://www.mathunion.org/organization/ec/ec-1952-2014/|title=International Mathematical Union (IMU): EC 1952-2014|last=the_technician|website=www.mathunion.org|url-status=dead|archive-url=https://web.archive.org/web/20170515025749/http://www.mathunion.org/organization/ec/ec-1952-2014/|archive-date=2017-05-15}}[http://www.sbm.org.br/institucional/organização/diretoria Diretoria - SBM - Sociedade Brasileira de Matemática]

In 1998, he was a plenary speaker at the International Congress of Mathematicians, in Berlin.{{cite web|title=International Mathematical Union (IMU)|website=www.mathunion.org|url=https://www.mathunion.org/icm-plenary-and-invited-speakers?combine=Viana}}{{cite book|author=Viana, Marcelo|chapter=Dynamics: a probabilistic and geometric perspective|title=Doc. Math. (Bielefeld) Extra Vol. ICM Berlin, 1998, vol. I|year=1998|pages=557–578|chapter-url=https://www.elibm.org/ft/10011737000}}

Viana is director elected of the IMPA (for the period 2016–2019).

Viana is a columnist for Folha de S.Paulo.{{Cite news|url=http://www1.folha.uol.com.br/colunas/marceloviana/|title=Folha de S.Paulo – Colunistas|work=Folha de S.Paulo|access-date=2017-05-08|language=pt-BR}}

He was the chair of the executive committee for the 2018 International Congress of Mathematicians, Rio de Janeiro.{{Cite web|url=http://www.icm2018.org/portal/en/icm-in-brazil|title=ICM – ICM 2018 in Brazil|website=www.icm2018.org|archive-url=https://web.archive.org/web/20150511043551/http://www.icm2018.org/portal/en/icm-in-brazil|archive-date=2015-05-11|url-status=dead|access-date=2017-05-08}}