Bernard Teissier (; born 1945) is a French

mathematician A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, mathematical structure, structure, space, Mathematica ...

and a member of the

Nicolas Bourbaki Nicolas Bourbaki () is the collective pseudonym of a group of mathematicians, predominantly French alumni of the École normale supérieure (Paris), École normale supérieure (ENS). Founded in 1934–1935, the Bourbaki group originally intende ...

group. He has made major contributions to

algebraic geometry Algebraic geometry is a branch of mathematics which uses abstract algebraic techniques, mainly from commutative algebra, to solve geometry, geometrical problems. Classically, it studies zero of a function, zeros of multivariate polynomials; th ...

and

commutative algebra Commutative algebra, first known as ideal theory, is the branch of algebra that studies commutative rings, their ideal (ring theory), ideals, and module (mathematics), modules over such rings. Both algebraic geometry and algebraic number theo ...

, specifically to

singularity theory In mathematics, singularity theory studies spaces that are almost manifolds, but not quite. A string can serve as an example of a one-dimensional manifold, if one neglects its thickness. A singularity can be made by balling it up, dropping it ...

multiplicity theory In abstract algebra, multiplicity theory concerns the multiplicity of a module ''M'' at an ideal ''I'' (often a maximal ideal) :\mathbf_I(M). The notion of the multiplicity of a module is a generalization of the degree of a projective variety. By ...

and

valuation theory In algebra (in particular in algebraic geometry or algebraic number theory), a valuation is a function on a field that provides a measure of the size or multiplicity of elements of the field. It generalizes to commutative algebra the notion of siz ...

. Teissier attained his

doctorate A doctorate (from Latin ''doctor'', meaning "teacher") or doctoral degree is a postgraduate academic degree awarded by universities and some other educational institutions, derived from the ancient formalism '' licentia docendi'' ("licence to teach ...

from

Paris Diderot University Paris Diderot University, also known as Paris 7 (), was a French university located in Paris, France. It was one of the inheritors of the historic University of Paris, which was split into 13 universities in 1970. Paris Diderot merged with Pari ...

in 1973, under supervision of

Heisuke Hironaka is a Japanese mathematician who was awarded the Fields Medal in 1970 for his contributions to algebraic geometry. Early life and education Hironaka was born on April 9, 1931 in Yamaguchi, Japan. He was inspired to study mathematics after a ...

. He was a member and a leading figure of

. Along with

Alain Connes Alain Connes (; born 1 April 1947) is a French mathematician, known for his contributions to the study of operator algebras and noncommutative geometry. He was a professor at the , , Ohio State University and Vanderbilt University. He was awar ...

, he gave the 1975/1976

Peccot Lectures The Peccot Lecture (''Cours Peccot'' in French) is a semester-long mathematics course given at the Collège de France. Each course is given by a mathematician under 30 years old who has distinguished themselves by their promising work. The course c ...

. He was an invited speaker at the International Congress of Mathematics at Warsaw in 1983. In 2012, he became a 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, ...

.List of Fellows of the American Mathematical Society
Ams.org, retrieved 2013-08-25.

References

External links

Website
1945 births Living people 20th-century French mathematicians 21st-century French mathematicians University of Paris alumni Fellows of the American Mathematical Society Nicolas Bourbaki {{France-mathematician-stub