The Math/Stats Colloquium resumes its regular schedule with Tullia Dymarz (U. Wisconsin) telling us all how to “Get rich fast!*”  A Ponzi scheme is a way of shuffling around money among friends and neighbors so that everyone ends up with more money than they started with.  Obviously this is an impossible feat with only finitely many people with a finite amount of cash (even though it has been attempted many times throughout history).  This talk will discuss Ponzi schemes on infinite graphs, with the goal of characterizing those graphs that admit Ponzi schemes and those that do not.

* = Offer available only on non-amenable graphs

Background: No particular background necessary.

• Date: Fri Nov 18
• Time: 2:30-3:20pm
• Room: MH320
• Snacks: 2:00pm in MH331B

For more information, click here to see the full flyer, suitable for printing and posting.

Hope to see you there!

Upcoming events:

• Fri Nov 25: NO COLLOQUIUM (Happy Thanksgiving!)\
• Fri Dec 02: Department meeting
• Fri Dec 02: Ian Leary, Univ. of Southampton/MSRI
  “Almost finitely presented groups and their subgroups”
• Fri Dec 09: Ruriko Yoshida, Naval Postgraduate School
  “Evolution and Triangles in Tree Spaces”