Peter J. Kahn

Professor Emeritus of Mathematics
571 Malott Hall
(607) 255-3670
kahn@math.cornell.edu

Ph.D. (1964) Princeton University

Research Area

Symplectic topology/geometry

For the past few years, I have been working in the area of symplectic topology. Among my current research interests in this area are the following topics: the Flux Conjecture (recently proved by Ono), Floer homology, Novikov homology, and applications of Floer homology to the topology of symplectomorphism groups.

Selected Publications

Pseudohomology and homology (Nov. 2001), 35 pp.

Symplectic torus bundles and group extensions (updated Jan. 2005), 20 pp.

Automorphisms of the discrete Heisenberg group (Feb. 2005), 7 pp.

The density of the set of trisectable angles (Dec. 2010, revised July 2011), 40 pp.

Trisection, Pythagorean angles, and Gaussian integers (July 2011), 10 pp.

m-Sectable angles and the density of polynomial images (April 2013), 19 pp.