The Combinatorics and Number Theory Seminar

SPRING 2001

Best Viewed With Any Browser

Organizers: Thomas Zaslavsky and Matthias Beck

• Tuesday, January 23, 2001 (joint with the Algebra Seminar)
  Speaker: Thomas Zaslavsky
  Title: Automorphism Groups of Dowling Lattices
  Time: 2:50-3:50
  Room: LN-2205
  
  
• Tuesday, January 30, 2001 (joint with the Algebra Seminar)
  Speaker: Kathryn Nyman (Cornell)
  Title: Incidence Numbers for Line and Pseudo-line Arrangements
  Time: 2:50-3:50
  Room: LN-2205
  
  
• Tuesday, February 6, 2001 (joint with the Algebra Seminar)
  Speaker: Alex Tchernev (SUNY Albany)
  Title: Combinatorial and Homological Properties of Polynomial Functors
  Time: 2:50-3:50
  Room: LN-2205
  
  
• Tuesday, February 13
  Speaker: Adnan Rubai
  Title: Playing Nim on Simplicial Complexes
  Time: 4:30-5:30
  Room: LN-2205



• Tuesday, February 20, 2001 (joint with the Algebra Seminar)
  Speaker: Stephanie van Willigenburg (Cornell)
  Title: Zigzags and Algebra
  Time: 2:50-3:50
  Room: LN-2205
  
  
• Tuesday, February 27
  Speaker: Steve Tedford
  Title: Introduction to Greedoids: Interesting Things with a Really Bad Name
  Time: 4:30-5:30
  Room: LN-2205
  
  
• Tuesday, March 6
  Blizzard; rescheduled for Thursday, March 8.
  
  
• Thursday, March 8
  Speaker: Matthias Beck
  Title: Multidimensional Ehrhart Reciprocity
  Time: 4:30-5:30
  Room: LN-2205
  
  
• Tuesday, March 13
  Spring break; no meeting.
  
  
• Tuesday, March 20
  Speaker: Steven Dougherty
  Title: The Search for an Extremal Code of Length 72
  Time: 4:30-5:30
  Room: LN-2205
  
  
• Tuesday, March 27
  Speaker: Steve Tedford
  Title: Generalizing the Graph-Coloring Techniques of Crowell to the Multi-Variable Alexander Polynomial of an Alternating Link
  Time: 2:50-3:50 (Special early time.)
  Room: LN-2205
  
  
• Monday, April 2 (special day)
  Speaker: Steve Tedford
  Title: Characterizing Branching Greedoids, I
  Time: 4:00-5:00 (special time)
  Room: LN-2205
  This will be the first half of Tedford's candidacy exam. It is open to all.



• Tuesday, April 3
  Time conflict; this week's meeting will be on Thursday, besides the special Monday and Wednesday meetings.
  
  
• Wednesday, April 4 (special day)
  Speaker: Steve Tedford
  Title: Characterizing Branching Greedoids, II
  Time: 4:00-5:00 (special time)
  Room: LN-2205
  This will be the second half of Tedford's candidacy exam. It is open to all.



• Thursday, April 5 (Special day!)
  Speaker: Matt Brin
  Title: Calculus III and the Four-Color Theorem
  Time: 4:30-5:30
  Room: LN-2205
  
  
• Tuesday, April 10
  Speaker: Martin Hildebrand (Albany)
  Title: The Proof of a Combinatorial Conjecture of Simion
  Time: 4:30-5:30
  Room: LN-2205
  
  
• Wednesday, April 18 (Special day and time!)
  Speaker: Konstantin Rybnikov (Cornell)
  Title: Gain Graphs and Polyhedral Geometry
  Time: 5:15-6:15
  Room: LN-2205
  
  
• Tuesday, April 24
  Speaker: Thomas Zaslavsky
  Title: Biased Graphs and the Associative Law
  Time: 4:30-5:30
  Room: LN-2205
  
  
• Tuesday, May 1
  Speaker: Matthias Beck
  Title: Dedekind's Reciprocity Law -- The Probabilistic Way
  
  
• Tuesday, May 8
  Time conflict; this week's seminar will be on Thursday.
  
  
• Thursday, May 10: cancelled.
  Speaker: Thomas Zaslavsky
  Title: Secrets of Biased Graphs Revealed!
  Time: This talk will be given in the future.