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At conferences:

A computational search for stabilizers of Teichmüller geodesics
at “Conformal Dynamics, Hyperbolic Geometry, and Continued Fractions”
Centre International de Rencontres Mathématiques,
Luminy, France, 13 June 2005

Teichmüller geodesics and Veech groups
at the International Workshop on Teichmüller Theory and Moduli Problems
HarishChandra Research Institute,
Allahabad, India, 7 January 2006
(an expanded set of notes from this talk, to appear in the conference proceedings, is available here)

Applications of Delaunay triangulations to Teichmüller theory
AhlforsBers Colloquium,
Rutgers University, Newark, 8 May 2008
Here is my submission to the proceedings of this conference.
(slides from this talk)

Applications of Delaunay triangulations to Teichmüller theory
Dynamique dans l'Espace de Teichmüller,
Station Biologique, Roscoff, France, 2 June 2008
(slides from this talk, essentially an expanded version from ABC)

Delaunay triangulations of flat surfaces
Graduate Conference in Algebra and Topology,
Binghamton University, Binghamton, 28 November 2008
At Cornell:

The plants go marching n by n:
garden variety affine and projective planes
Olivetti Club, 24 February 2004

Enlivening the classroom:
reducing teachers’ and students’ stress with humor
Teaching Seminar, 2 February 2005

Here a ball, there a ball, everywhere a unit ball:
Royden’s theorem on isometries of Teichmüller space
Olivetti Club, 29 March 2005

Project calculus:
incorporating longterm projects in your calculus classroom
(with Jonathan Needleman)
Teaching Seminar, 27 April 2005

Translation with a capital T, and that rhymes with B,
and that stands for billiards!
Olivetti Club, 20 September 2005

Veech groups of flat surfaces
Dynamical Systems Seminar, 5 December 2005

PseudoAnosov maps of a surfaceally docious
(If you say it loud enough you'll always sound precocious)
Olivetti Club, 4 April 2006

Klein’s quartic, ’tis of thee, sweet curve of genus 3, of thee I sing
Olivetti Club, 6 November 2007

Visualizing Veech groups
Dynamical Systems Seminar, 30 November 2007

The cocycle of life
Olivetti Club, 22 April 2008

Applications of Delaunay triangulations to flat surfaces
Dynamical Systems Seminar, 25 April 2008

Preparing teaching and research statements
Cornell Teaching Seminar, 17 September 2008

Some variational and asymptotic methods in the study of complex structures
Cornell Lie Groups Seminar, 24 October 2008
Elsewhere:
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back to my directory page at the Cornell math department