AMS Sectional Meeting Program by Special Session
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1997 Fall Central Sectional Meeting
Milwaukee, WI, October 2425, 1997
Meeting #927
Associate secretaries:
Susan J Friedlander, AMS
susan@math.northwestern.edu
Special Session on Geometric Topology and Geometric Group Theory

Friday October 24, 1997, 8:30 a.m.10:50 a.m.
Special Session on Geometric Topology and Geometric Group Theory, I
Room E159, Engineering and Mathematical Sciences Building
Organizers:
Fredric Davis Ancel, University of WisconsinMilwaukee ancel@csd.uwm.edu
Craig R. Guilbault, University of WisconsinMilwaukee craigg@csd.uwm.edu

8:30 a.m.
Homogeneity of Boundaries of right angled Coxeter groups having manifold nerves.
Hanspeter Fischer*, University of Wisconsin  Milwaukee
(92757143)

9:00 a.m.
Resolving infinitedimensional homology manifolds.
Steven C Ferry*, SUNY at Binghamton
(92757323)

9:30 a.m.
A cut point theorem for 2dimensional CAT(0) groups.
Eric L. Swenson*, Brigham Young University
(92720191)

10:00 a.m.
Rigidity theorems for singular spaces.
Boris Okun*, OSU
Michael Davis, OSU
Fangyang Zheng, OSU
(92751336)

10:30 a.m.
Algebraic Annulus and Torus Theorems
Peter Scott*, Michigan
Gadde A. Swarup,
(92757201)

Friday October 24, 1997, 2:30 p.m.6:20 p.m.
Special Session on Geometric Topology and Geometric Group Theory, II
Room E159, Engineering and Mathematical Sciences Building
Organizers:
Fredric Davis Ancel, University of WisconsinMilwaukee ancel@csd.uwm.edu
Craig R. Guilbault, University of WisconsinMilwaukee craigg@csd.uwm.edu

2:30 p.m.
Multiplicities of boundary slopes in knot exteriors.
Marc Culler, Univ. of Illinois at Chicago
Peter B Shalen*, Univ. of Illinois at Chicago
(92757324)

3:00 p.m.
Boundary slopes and genera of incompressible surfaces in knot exteriors.
Marc Culler*, Univ. of Illinois at Chicago
Peter B Shalen, Univ. of Illinois at Chicago
(92757325)

3:30 p.m.
Properties of convergence groups and spaces
Eric M Freden*, Utah State University
(92757177)

4:00 p.m.
Deformations of flat conformal structures for hyperbolic $3$manifolds
Kevin P. Scannell*, Rice University
(92757241)

4:30 p.m.
The JSJ decomposition for a certain class of Coxeter groups.
Nadia Benakli*, Columbia University
Zlil Sela, Columbia University
(92720296)

5:00 p.m.
Connectivity at infinity for right angled Artin groups
Noel Brady,
John Meier*,
(92720155)

5:30 p.m.
Infinite collections of symmetric, aspherical, negatively curved $2$complexes of the same Euler characteristic
Paul R Brown*,
(92720264)

6:00 p.m.
Codimension 2 Nonfibrators with Finite Fundamental Groups
Robert J Daverman*, University of Tennessee
(92757142)

Saturday October 25, 1997, 8:30 a.m.10:50 a.m.
Special Session on Geometric Topology and Geometric Group Theory, III
Room E159, Engineering and Mathematical Sciences Building
Organizers:
Fredric Davis Ancel, University of WisconsinMilwaukee ancel@csd.uwm.edu
Craig R. Guilbault, University of WisconsinMilwaukee craigg@csd.uwm.edu

8:30 a.m.
Representing homology classes of 4manifolds
Gerard A. Venema*, Calvin College
Vo Thanh Liem, University of Alabama
(92757289)

9:00 a.m.
Grushko's Theorem for Surfaces
John R. Stallings*, University of California, Berkeley
(9272078)

9:30 a.m.
Automorphisms of Coxeter Groups
Ruth M Charney*, Ohio State University
Michael W Davis, Ohio State University
(92720252)

10:00 a.m.
The topology at infinity of $Out(F_n)$
Mladen Bestvina, University of Utah
Mark Feighn*, Rutgers Universtiy  Newark
(92720167)

10:30 a.m.
Solvable subgroups of $Out(F_n)$ are virtually abelian
Mladen Bestvina,
Mark Feighn,
Michael Handel*,
(92720185)

Saturday October 25, 1997, 2:30 p.m.5:50 p.m.
Special Session on Geometric Topology and Geometric Group Theory, IV
Room E159, Engineering and Mathematical Sciences Building
Organizers:
Fredric Davis Ancel, University of WisconsinMilwaukee ancel@csd.uwm.edu
Craig R. Guilbault, University of WisconsinMilwaukee craigg@csd.uwm.edu

2:30 p.m.
Quasiisometric Rigidity and the Geometry of $PSL_2(\bf{Z}[\frac{1}{p}])$
Jennifer Taback*,
(92751297)

3:00 p.m.
Mapping class groups and Lie groups.
Benson Farb*, University of Chicago
(92720371)

3:30 p.m.
$p$Adic actions on boundaries of Coxeter groups
Alexander N Dranishnikov*, University of Florida
(9272062)

4:00 p.m.
Computing Angles Inside Free Groups
Zeph Grunschlag*, U.C. Berkeley
(92720156)

4:30 p.m.
The action of an isometry on the boundary of a CAT(0) space
Kim E. Ruane*, Vanderbilt University
(92720133)

5:00 p.m.
Nonlocally connected boundaries of Artin groups, Coxeter groups and parabolic extensions of $F_2$ by $\Bbb Z$.
Michael L. Mihalik*, Vanderbilt University
(92720163)

5:30 p.m.
Strong general position and hiding a set behind a Cantor set.
Troy L. Goodsell, Pittsburg State University
David G. Wright*, Brigham Young University
(92757307)
Inquiries: meet@ams.org