Differentiable structures on finite sets August 2 to August 6, 2010 American Institute of Mathematics, Palo Alto, CA Organizers: Charles Fefferman and Nahum Zobin Description: This workshop, sponsored by AIM and the NSF, will focus on recent activity in the study of Lipschitz structures on finite sets. In particular, the workshop will address the question of whether there is a reasonable notion of structures on a finite set involving higher degrees of smoothness. Deadline: April 2, 2010 Details: http://aimath.org/ARCC/workshops/smoothextension.html