(1926–2006) was a Japanese-born American mathematician, who specialized in algebraic geometry. Matsusaka received his Ph.D. in 1952 at

Kyoto University , mottoeng = Freedom of academic culture , established = , type = National university, Public (National) , endowment = ¥ 316 billion (2.4 1000000000 (number), billion USD) , faculty = 3,480 (Teaching Staff) , administrative_staff ...

; he was a member of the Brandeis Mathematics Department from 1961 until his retirement in 1994, and was that department's chair from 1984–1986. He was invited to address the

International Congress of Mathematicians The International Congress of Mathematicians (ICM) is the largest conference for the topic of mathematics. It meets once every four years, hosted by the International Mathematical Union (IMU). The Fields Medals, the Nevanlinna Prize (to be rename ...

held in Edinburgh in 1958 and was elected to 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, and ...

in 1966. During the difficult years after the Second World War, Matsusaka worked on several problems connected with Weil's ''

Foundations of Algebraic Geometry ''Foundations of Algebraic Geometry'' is a book by that develops algebraic geometry over field (mathematics), fields of any characteristic (algebra), characteristic. In particular it gives a careful treatment of intersection theory by defining th ...

''. This led to a correspondence and eventually Weil invited Matsusaka to the

University of Chicago The University of Chicago (UChicago, Chicago, U of C, or UChi) is a private research university in Chicago, Illinois. Its main campus is located in Chicago's Hyde Park neighborhood. The University of Chicago is consistently ranked among the b ...

(1954–57) where they became life-long friends. After three years at

Northwestern University Northwestern University is a private research university in Evanston, Illinois. Founded in 1851, Northwestern is the oldest chartered university in Illinois and is ranked among the most prestigious academic institutions in the world. Charte ...

and a year at 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 scholar ...

Princeton 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 nine ...

, he went to Brandeis University in 1961 where he stayed until 1994, helping to build the department to its current prominence. Matsusaka was awarded a

Guggenheim Fellowship Guggenheim Fellowships are grants that have been awarded annually since by the John Simon Guggenheim Memorial Foundation to those "who have demonstrated exceptional capacity for productive scholarship or exceptional creative ability in the ar ...

for the academic year 1959–1960.John Simon Guggenheim Foundation, Teruhisa Matsusaka
/ref> In 1972, Matsusaka introduced

Matsusaka's big theorem In algebraic geometry, given an ample line bundle ''L'' on a compact complex manifold ''X'', Matsusaka's big theorem gives an integer ''m'', depending only on the Hilbert polynomial of ''L'', such that the tensor power ''L'n'' is very ample for ' ...

, a key technical result on

ample line bundle In mathematics, a distinctive feature of algebraic geometry is that some line bundles on a projective variety can be considered "positive", while others are "negative" (or a mixture of the two). The most important notion of positivity is that of an ...

Selected publications

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References

{{DEFAULTSORT:Matsusaka, Teruhisa 1926 births 2006 deaths Algebraic geometers 20th-century Japanese mathematicians 20th-century American mathematicians 21st-century Japanese mathematicians 21st-century American mathematicians Kyoto University alumni Brandeis University faculty Japanese emigrants to the United States American academics of Japanese descent