This web presentation contains the audio of a lecture given at the Fields Institute on August 15, 2002 as part of the 2002 Workshop on the Solution of Partial Differential Equations on the Sphere.
Listen to audio presentation:
Directly in browser (supported in recent versions of Mozilla Firefox, Google Chrome, and others, but not yet in Microsoft Internet Explorer): Your browser does not support direct audio playback.
In an external player:
Ogg Vorbis format (downloadable too; right-click to download)
MP3 format (downloadable too; right-click to download)