AMS Sectional Meeting Program by Special Session
Current as of Saturday, April 23, 2005 00:22:16
2005 Spring Western Section Meeting
Santa Barbara, CA, April 1617, 2005
Meeting #1007
Associate secretaries: Michel L Lapidus, AMS lapidus@math.ucr.edu, lapidus@mathserv.ucr.edu
Special Session on Curvature in Group Theory and Combinatorics

Saturday April 16, 2005, 8:00 a.m.10:50 a.m.
Special Session on Curvature in Group Theory and Combinatorics, I
Room 2119, Girvetz Hall
Organizers:
Laura M. Anderson, State University of New York at Binghamton laura@math.binghamton.edu
Noel Patrick Brady, University of Oklahoma nbrady@math.ou.edu
Robin Forman, Rice University forman@math.rice.edu
Jonathan P. McCammond, University of California Santa Barbara jon.mccammond@math.ucsb.edu

8:00 a.m.
Nested set complexes and spaces of trees.
EvaMaria E. Feichtner*, Department of Mathematics, ETH Zurich
(100751215) 
8:30 a.m.
The Bergman Complex of a Matroid.
Caroline Klivans*, University of Chicago
(100705221) 
9:00 a.m.
CAT(0) Cubical Complexes in Group Theory.
Michah Sageev*, Technion
(100720217) 
9:30 a.m.
The Action of Thompson's Group on a CAT(0) Boundary.
Daniel S Farley*, University of Illinois at UrbanaChampaign
(100720208) 
10:00 a.m.
Discrete Morse Theory and Hom complexes.
Dmitry N Kozlov*, ETHZurich
(100705216) 
10:30 a.m.
Discrete Morse theory and graph braid groups.
Lucas Sabalka*, U. of Illinois at UrbanaChampaign
(100720157)

8:00 a.m.

Saturday April 16, 2005, 3:00 p.m.5:50 p.m.
Special Session on Curvature in Group Theory and Combinatorics, II
Room 2119, Girvetz Hall
Organizers:
Laura M. Anderson, State University of New York at Binghamton laura@math.binghamton.edu
Noel Patrick Brady, University of Oklahoma nbrady@math.ou.edu
Robin Forman, Rice University forman@math.rice.edu
Jonathan P. McCammond, University of California Santa Barbara jon.mccammond@math.ucsb.edu

3:00 p.m.
Injections of Artin groups.
Robert W Bell*, University of Utah
Dan Margalit, University of Utah
(100720198) 
3:30 p.m.
On the homotopy classification of aspherical groups.
Jens Harlander*, Western Kentucky University
Jacqueline Jensen, Sam Houston State University
(100757241) 
4:00 p.m.
A Rigid Combinatorial Sphere Theorem.
Aaron D. Trout*, Rice University Department of Mathematics
(100752194) 
4:30 p.m.
A Dehn surgery theorem for relatively hyperbolic groups.
Daniel P Groves*, California Institute of Technology
Jason F. Manning, California Institute of Technology
(100720175) 
5:00 p.m.
The intersection form and geodesic currents on free groups.
Ilya Kapovich*, University of Illinois at UrbanaChampaign
(100720162) 
5:30 p.m.
Symmetric join functor.
Igor Mineyev*, University of Illinois at UrbanaChampaign
(100720205)

3:00 p.m.

Sunday April 17, 2005, 8:00 a.m.10:50 a.m.
Special Session on Curvature in Group Theory and Combinatorics, III
Room 2119, Girvetz Hall
Organizers:
Laura M. Anderson, State University of New York at Binghamton laura@math.binghamton.edu
Noel Patrick Brady, University of Oklahoma nbrady@math.ou.edu
Robin Forman, Rice University forman@math.rice.edu
Jonathan P. McCammond, University of California Santa Barbara jon.mccammond@math.ucsb.edu

8:00 a.m.
How neighborly can a centrally symmetric polytope be?
Nathan Linial, Institute of Computer Science, Hebrew University, Jerusalem, Israel
Isabella Novik*, Department of Mathematics, University of Washington, Seattle, WA
(100705170) 
8:30 a.m.
A proof of Forman's combinatorial Weitzenb{\" o}ck decomposition and a combinatorial Gau{\ss}Bonnet theorem.
Carsten Lange*, Institut MittagLeffler
(100752231) 
9:00 a.m.
Surface Subgroups of Hyperbolizations of Groups.
Noel Brady, University of Oklahoma
Max Forester, University of Oklahoma
Eduardo Martinez*, University of Oklahoma
(100720154) 
9:30 a.m.
Nonorderable 3manifold groups.
Rachel Roberts, Washington University
John Shareshian*, Washington University
Melanie Stein, Trinity College
(100720211) 
10:00 a.m.
Distortion of surface groups in freebycyclic groups.
Josh Barnard*, University of Oklahoma
Noel Brady, University of Oklahoma
(100720186) 
10:30 a.m.
First and second order isoperimetric exponents of groups.
Noel Brady, University of Oklahoma
Martin Bridson, Imperial College London
Max Forester*, University of Oklahoma
Krishnan Shankar, University of Oklahoma
(100720174)

8:00 a.m.

Sunday April 17, 2005, 3:00 p.m.5:50 p.m.
Special Session on Curvature in Group Theory and Combinatorics, IV
Room 2119, Girvetz Hall
Organizers:
Laura M. Anderson, State University of New York at Binghamton laura@math.binghamton.edu
Noel Patrick Brady, University of Oklahoma nbrady@math.ou.edu
Robin Forman, Rice University forman@math.rice.edu
Jonathan P. McCammond, University of California Santa Barbara jon.mccammond@math.ucsb.edu

3:00 p.m.
Tangent bundles and curvature for point cloud data.
Robin Forman*, Rice University
(100752234) 
3:30 p.m.
The Euler characteristic of the Whitehead automorphism group of a free product.
Craig Jensen*, University of New Orleans
Jon McCammond, University of CaliforniaSanta Barbara
John Meier, Lafayette College
(100720223) 
4:00 p.m.
Finiteness properties of the Torelli group for $\textrm{Out}(F_3)$.
Dan Margalit*, University of Utah
Mladen Bestvina, University of Utah
KaiUwe Bux, University of Virginia
(100720218) 
5:00 p.m.
Polycyclic Groups: A new Platform for Cryptology.
Delaram Kahrobaei*, University of St Andrews (UK)
Bettina Eick, Technische Universit\"at Braunschweig
(10072038) 
5:30 p.m.
CAT(0) and CAT(1) dimenisons of torsion free hyperbolic groups.
Noel P Brady*, University of Oklahoma
John Crisp, Universite de Bourgogne
(100720171)

3:00 p.m.