H. Blaine Lawson

Blaine Lawson is a mathematician best known for his work in minimal surfaces, calibrated geometry, and algebraic cycles. His current position is Distinguished Professor at the State University of New York at Stony Brook. He received his PhD from Stanford University in 1969 for worked carried out under the supervision of Robert Osserman. He was a 1973 recipient of the American Mathematical Society's Leroy P. Steele Prize, and was elected to the US National Academy of Sciences in 1995. He is a former recipient of both Sloan and Guggenheim Foundation fellowships, and has delivered two invited addresses at International Congresses of Mathematicians, one on geometry, and one on topology. He has served as Vice President of the American Mathematical Society, and is a foreign member of the Brazilian Academy of Sciences.

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Minimal surfaces

Lawson found in 1970 a method to solve free boundary value problems for unstable Euclidean constant-mean-curvature surfaces by solving a corresponding Plateau problem for minimal surfaces in S3. He constructed compact minimal surfaces in the 3-sphere of arbitrary genus by applying Morrey's solution of the Plateau problem in general manifolds. This work of Lawson contains a rich set of ideas among them the conjugate surface construction for minimal and constant mean curvature surfaces.

Calibrated geometry

The theory of calibrations, whose roots are in the work of Marcel Berger, finds its genesis in a 1982 Acta Mathematica paper of Reese Harvey and Blaine Lawson. The theory of calibrations has grown to be important because of its many applications to gauge theory and mirror symmetry.

Algebraic cycles

In his 1989 Annals of Mathematics paper "algebraic cycles and homotopy theory", Lawson proved a theorem which is now called the Lawson suspension theorem. This theorem is the cornerstone of Lawson homology and morphic cohomology which are defined by taking the homotopy groups of algebraic cycle spaces of complex varieties. These two theories are dual to each other for smooth varieties and have properties similar to those of Chow groups.

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