AMS Sectional Meeting Program by Special Session
Current as of Tuesday, April 12, 2005 15:21:28
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2001 Spring Central Section Meeting
Lawrence, KS, March 3031, 2001
Meeting #964
Associate secretaries:
Susan J Friedlander, AMS
susan@math.northwestern.edu
Special Session on Polytopes

Friday March 30, 2001, 9:00 a.m.11:20 a.m.
Special Session on Polytopes, I
Room 335, Strong Hall
Organizers:
Margaret Bayer, University of Kansas bayer@math.ukans.edu
Carl Lee, University of Kentucky lee@ms.uky.edu

9:00 a.m.
Counting faces in the extended Shi arrangement.
Richard Ehrenborg*, University of Kentucky
(9640546)

9:30 a.m.
Bases for the Flag fVectors of Eulerian Posets.
Nathan P Reading*, University of Minnesota
(9640525)

10:00 a.m.
Relating flag $f$vector inequalities from the {\bf cd}index and toric $g$vector.
Catherine Stenson*, Juniata College
(96452199)

10:30 a.m.
Meaning and uses of the $\ell$vector.
G\'abor Hetyei*, UNC Charlotte
(96406216)

11:00 a.m.
The Manin ring in string theory.
Margaret A Readdy*, University of Kentucky
(9640544)

Friday March 30, 2001, 3:00 p.m.5:50 p.m.
Special Session on Polytopes, II
Room 335, Strong Hall
Organizers:
Margaret Bayer, University of Kansas bayer@math.ukans.edu
Carl Lee, University of Kentucky lee@ms.uky.edu

3:00 p.m.
Orthogonal Matroids.
Andrew Vince, University of Florida
Neil L White*, University of Florida
(9640585)

3:30 p.m.
Recovering Lexicographic Triangulations from their $z$vectors.
Wendy A Weber*, Central College
Carl W Lee, University of Kentucky
(96452201)

4:00 p.m.
Permutahedra Relative to a Regular Polytope.
Vincent J Matsko*, Quincy University
(96452153)

4:30 p.m.
Discrete Morse functions from lexicographic orders.
Eric K Babson, University of Washington
Patricia L Hersh*, University of Washington
(96405198)

5:00 p.m.
Alexander duality for projections of polytopes.
Xun Dong*, University of Minnesota
(9645214)

5:30 p.m.
Revisiting bicyclic 4polytopes.
Ted Bisztriczky*, University of Calgary
(9645223)

Saturday March 31, 2001, 9:00 a.m.11:20 a.m.
Special Session on Polytopes, III
Room 335, Strong Hall
Organizers:
Margaret Bayer, University of Kansas bayer@math.ukans.edu
Carl Lee, University of Kentucky lee@ms.uky.edu

9:00 a.m.
Firstorder and Convex Rigidity of Polyhedra in Euclidean, Spherical and Hyperbolic Spaces I.
Franco V. Saliola, Cornell University
Walter J. Whiteley*, York University
(96452219)

9:30 a.m.
FirstOrder and Convex Rigidity of Polyhedra in Euclidean, Spherical and Hyperbolic Spaces II.
Franco V Saliola*, Cornell University
Walter J Whiteley, York University
(96452212)

10:00 a.m.
Perfect Delaunay Polytopes for Lattices.
Robert M Erdahl*, Queen's University
(96452164)

10:30 a.m.
Edge maximal unit distance graphs in the plane.
Brigitte Servatius*, Worcester Polytechnic Institute
(96405235)

11:00 a.m.
Commensurate Delaunay Tilings of $\mathbb{Z}^n$ and Voronoi's Theory of Ltypes.
Robert M Erdahl, Queen's University
Konstantin Rybnikov*, Cornell University
(96452240)

Saturday March 31, 2001, 3:00 p.m.5:20 p.m.
Special Session on Polytopes, IV
Room 335, Strong Hall
Organizers:
Margaret Bayer, University of Kansas bayer@math.ukans.edu
Carl Lee, University of Kentucky lee@ms.uky.edu

3:00 p.m.
A positive semidefinite version of a simple polytope does not exist in some dimensions.
Alexander Barvinok*, University of Michigan
(96452118)

3:30 p.m.
Linear Programming with no Right Hand Side.
Walter Morris*, George Mason University
(96490196)

4:00 p.m.
Some results on the dominating set polytope.
Teresa M Contenza*, University of Montevallo
(96452149)

4:30 p.m.
Lattice points of Flow polytopes.
Jesus A De Loera*, Univ. of California, Davis
Bernd Sturmfels, Univ. of California, Berkeley
(96452121)

5:00 p.m.
Toward Characterizing the Mutation Count Matrices.
Jim Lawrence*, George Mason University
(96452242)
Inquiries: meet@ams.org