Shou-Wu Zhang
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Shou-Wu Zhang (; born October 9, 1962) is a Chinese-American mathematician known for his work in
number theory Number theory (or arithmetic or higher arithmetic in older usage) is a branch of pure mathematics devoted primarily to the study of the integers and integer-valued functions. German mathematician Carl Friedrich Gauss (1777–1855) said, "Mat ...
and
arithmetic geometry In mathematics, arithmetic geometry is roughly the application of techniques from algebraic geometry to problems in number theory. Arithmetic geometry is centered around Diophantine geometry, the study of rational points of algebraic varieties. ...
. He is currently a Professor of Mathematics at
Princeton University Princeton University is a private research university in Princeton, New Jersey. Founded in 1746 in Elizabeth as the College of New Jersey, Princeton is the fourth-oldest institution of higher education in the United States and one of the ...
.


Biography


Early life

Shou-Wu Zhang was born in Hexian,
Ma'anshan Ma'anshan (), also colloquially written as Maanshan, is a prefecture-level city in the eastern part of Anhui province in Eastern China. An industrial city stretching across the Yangtze River, Ma'anshan borders Hefei to the west, Wuhu to the sout ...
,
Anhui Anhui , (; formerly romanized as Anhwei) is a landlocked province of the People's Republic of China, part of the East China region. Its provincial capital and largest city is Hefei. The province is located across the basins of the Yangtze River ...
, China on October 9, 1962. Zhang grew up in a poor farming household and could not attend school until eighth grade due to the Cultural Revolution. He spent most of his childhood raising ducks in the countryside and self-studying mathematics textbooks that he acquired from
sent-down youth The sent-down, rusticated, or "educated" youth (), also known as the ''zhiqing'', were the young people who—beginning in the 1950s until the end of the Cultural Revolution, willingly or under coercion—left the urban districts of the ...
in trades for frogs. By the time he entered junior high school at the age of fourteen, he had self-learned calculus and had become interested in number theory after reading about Chen Jingrun's proof of Chen's theorem which made substantial progress on Goldbach's conjecture.


Education

Zhang was admitted to the
Sun Yat-sen University Sun Yat-sen University (, abbreviated SYSU and colloquially known in Chinese as Zhongda), also known as Zhongshan University, is a national key public research university located in Guangzhou, Guangdong, China. It was founded in 1924 by and nam ...
chemistry department in 1980 after scoring poorly on his mathematics entrance examinations, but he later transferred to the mathematics department after feigning
color blindness Color blindness or color vision deficiency (CVD) is the decreased ability to see color or differences in color. It can impair tasks such as selecting ripe fruit, choosing clothing, and reading traffic lights. Color blindness may make some aca ...
and received his bachelor's degree in mathematics in 1983. He then studied under analytic number theorist Wang Yuan at the
Chinese Academy of Sciences The Chinese Academy of Sciences (CAS); ), known by Academia Sinica in English until the 1980s, is the national academy of the People's Republic of China for natural sciences. It has historical origins in the Academia Sinica during the Republi ...
where he received his master's degree in 1986. In 1986, Zhang was brought to the United States to pursue his doctoral studies at
Columbia University Columbia University (also known as Columbia, and officially as Columbia University in the City of New York) is a private research university in New York City. Established in 1754 as King's College on the grounds of Trinity Church in Manhatt ...
by Dorian M. Goldfeld. He then studied under Goldfeld,
Hervé Jacquet Hervé Jacquet is a French American mathematician, working in automorphic forms. He is considered one of the founders of the theory of automorphic representations and their associated L-functions, and his results play a central role in modern num ...
, Lucien Szpiro, and
Gerd Faltings Gerd Faltings (; born 28 July 1954) is a German mathematician known for his work in arithmetic geometry. Education From 1972 to 1978, Faltings studied mathematics and physics at the University of Münster. In 1978 he received his PhD in mathema ...
, and then completed his PhD at Columbia University under Szpiro in 1991.


Career

Zhang was a member of the
Institute for Advanced Study The Institute for Advanced Study (IAS), located in Princeton, New Jersey, in the United States, is an independent center for theoretical research and intellectual inquiry. It has served as the academic home of internationally preeminent schola ...
and an assistant professor at Princeton University from 1991 to 1996. In 1996, Zhang moved back to Columbia University where he was a tenured professor until 2013. He has been a professor at Princeton University since 2011 and is an Eugene Higgins Professor since 2021. Zhang is on the editorial boards of: ''
Acta Mathematica Sinica ''Acta Mathematica Sinica'' (English series) is a peer-reviewed mathematics journal published quarterly by Springer. Founded in 1936 and split into a Chinese series and an English series in 1985, the journal publishes articles on all areas of mat ...
'', ''
Algebra & Number Theory ''Algebra & Number Theory'' is a peer-reviewed mathematics journal published by the nonprofit organization Mathematical Sciences Publishers. It was launched on January 17, 2007, with the goal of "providing an alternative to the current range of com ...
'', '' Forum of Mathematics'', ''
Journal of Differential Geometry The ''Journal of Differential Geometry'' is a peer-reviewed scientific journal of mathematics published by International Press on behalf of Lehigh University in 3 volumes of 3 issues each per year. The journal publishes an annual supplement in b ...
'', ''National Science Review'', ''Pure and Applied Mathematics Quarterly'', ''Science in China'', and ''Research in Number Theory''. He has previously served on the editorial boards of: ''
Journal of Number Theory The ''Journal of Number Theory'' (''JNT'') is a bimonthly peer-reviewed scientific journal covering all aspects of number theory. The journal was established in 1969 by R.P. Bambah, P. Roquette, A. Ross, A. Woods, and H. Zassenhaus (Ohio State ...
'', '' Journal of the American Mathematical Society'', ''Journal of Algebraic Geometry'', and '' International Journal of Number Theory''.


Research

Zhang's doctoral thesis ''Positive line bundles on Arithmetic Surfaces'' proved a Nakai–Moishezon type theorem in
intersection theory In mathematics, intersection theory is one of the main branches of algebraic geometry, where it gives information about the intersection of two subvarieties of a given variety. The theory for varieties is older, with roots in Bézout's theorem o ...
using a result from differential geometry already proved in Tian Gang's doctoral thesis. In a series of subsequent papers (, ), he further developed his theory of 'positive line bundles' in
Arakelov theory In mathematics, Arakelov theory (or Arakelov geometry) is an approach to Diophantine geometry, named for Suren Arakelov. It is used to study Diophantine equations in higher dimensions. Background The main motivation behind Arakelov geometry is t ...
which culminated in a proof (with Emmanuel Ullmo) of the
Bogomolov conjecture In mathematics, the Bogomolov conjecture is a conjecture, named after Fedor Bogomolov, in arithmetic geometry about algebraic curves that generalizes the Manin-Mumford conjecture in arithmetic geometry. The conjecture was proved by Emmanuel Ullmo ...
(). In a series of works in the 2000s (, ), Zhang proved a generalization of the
Gross–Zagier theorem In mathematics, a Heegner point is a point on a modular curve that is the image of a quadratic imaginary point of the upper half-plane. They were defined by Bryan Birch and named after Kurt Heegner, who used similar ideas to prove Gauss's conjectu ...
from
elliptic curves In mathematics, an elliptic curve is a smooth, projective, algebraic curve of genus one, on which there is a specified point . An elliptic curve is defined over a field and describes points in , the Cartesian product of with itself. If t ...
over rationals to modular
abelian varieties In mathematics, particularly in algebraic geometry, complex analysis and algebraic number theory, an abelian variety is a Algebraic variety#Projective variety, projective algebraic variety that is also an algebraic group, i.e., has a group law th ...
of GL(2) type over totally real fields. In particular, the latter result led him to a proof of the rank one Birch-Swinnerton-Dyer conjecture for modular abelian varieties of GL(2) type over
totally real field In number theory, a number field ''F'' is called totally real if for each embedding of ''F'' into the complex numbers the image lies inside the real numbers. Equivalent conditions are that ''F'' is generated over Q by one root of an integer polyno ...
s through his work relating the
Néron–Tate height In number theory, the Néron–Tate height (or canonical height) is a quadratic form on the Mordell–Weil group of rational points of an abelian variety defined over a global field. It is named after André Néron and John Tate. Definition and p ...
of Heegner points to special values of
L-function In mathematics, an ''L''-function is a meromorphic function on the complex plane, associated to one out of several categories of mathematical objects. An ''L''-series is a Dirichlet series, usually convergent on a half-plane, that may give ri ...
s in . Eventually, established a full generalization of the Gross–Zagier theorem to all Shimura curves. In
arithmetic dynamics Arithmetic dynamics is a field that amalgamates two areas of mathematics, dynamical systems and number theory. Classically, discrete dynamics refers to the study of the iteration of self-maps of the complex plane or real line. Arithmetic dynamics is ...
, posed conjectures on the Zariski density of non-fibered
endomorphism In mathematics, an endomorphism is a morphism from a mathematical object to itself. An endomorphism that is also an isomorphism is an automorphism. For example, an endomorphism of a vector space is a linear map , and an endomorphism of a gr ...
s of quasi-projective varieties and proposed a dynamical analogue of the Manin–Mumford conjecture. In 2018, proved the averaged Colmez conjecture which was shown to imply the André–Oort conjecture for Siegel modular varieties by Jacob Tsimerman.


Awards

Zhang has received a Sloan Foundation Research Fellowship (1997) and a Morningside Gold Medal of Mathematics (1998). He is also a Clay Foundation Prize Fellow (2003), Guggenheim Foundation Fellow (2009), Fellow of the
American Academy of Arts and Sciences The American Academy of Arts and Sciences (abbreviation: AAA&S) is one of the oldest learned societies in the United States. It was founded in 1780 during the American Revolution by John Adams, John Hancock, James Bowdoin, Andrew Oliver, a ...
(2011), and Fellow of the
American Mathematical Society The American Mathematical Society (AMS) is an association of professional mathematicians dedicated to the interests of mathematical research and scholarship, and serves the national and international community through its publications, meetings, ...
(2016). He was also an invited speaker at the International Congress of Mathematicians in 1998.


Selected publications


Arakelov theory

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Bogomolov Conjecture

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Gross--Zagier formulae

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Arithmetic dynamics

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References


External links


Princeton home page
* {{DEFAULTSORT:Zhang, Shou-Wu 1962 births Living people 21st-century American mathematicians Arithmetic geometers Columbia University alumni Columbia University faculty Educators from Anhui Fellows of the American Academy of Arts and Sciences Fellows of the American Mathematical Society Mathematicians from Anhui People from Ma'anshan Princeton University faculty Sun Yat-sen University alumni Tsinghua University faculty Chinese emigrants to the United States Institute for Advanced Study visiting scholars 20th-century Chinese mathematicians