AMS Sectional Meeting Program by Special Session
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2001 Fall Central Section Meeting
Columbus, OH, September 2123, 2001
Meeting #969
Associate secretaries:
Susan J Friedlander, AMS
susan@math.northwestern.edu
Special Session on $L^2$ Methods in Algebraic and Geometric Topology

Friday September 21, 2001, 1:30 p.m.5:15 p.m.
Special Session on $L^2$ Methods in Algebraic and Geometric Topology, I
BE 0184, Baker Systems Engineering (BE)
Organizers:
Dan Burghelea, Ohio State University burghele@math.ohiostate.edu
Michael Davis, Ohio State University mdavis@math.ohiostate.edu

1:30 p.m.
Spectral flow and Dixmier traces.
Alan L Carey*, University of Adelaide
John Phillips, University of Victoria
Fyodor Sukochev, Flinders University
(96958164)

2:30 p.m.
On the zerointhespectrumconjecture.
Michael Farber*, Tel Aviv University
(96957191)

3:30 p.m.
Semicalssical assymptotic for determinants of operators almost elliptic with parameter.
Maxim Braverman*, Northeastern University
(9695857)

4:30 p.m.
On the $L^2$ spectrum of periodic differential operators.
Leonid Friedlander*, University of Arizona
(96958238)

Saturday September 22, 2001, 8:30 a.m.11:15 a.m.
Special Session on $L^2$ Methods in Algebraic and Geometric Topology, II
BE 0184, Baker Systems Engineering (BE)
Organizers:
Dan Burghelea, Ohio State University burghele@math.ohiostate.edu
Michael Davis, Ohio State University mdavis@math.ohiostate.edu

8:30 a.m.
Betti number growth for coverings.
Bryan F Clair*, Saint Louis University
Kevin M Whyte, Univ. Of Illinois  Chicago
(9695451)

9:30 a.m.
Zero divisors and approximating $L^2$Betti numbers.
Peter A Linnell*, Virginia Tech
(96946155)

10:30 a.m.
Refined semiclassical asymptotics and a vanishing theorem for higher traces.
Yuri A Kordyukov, Department of Mathematics, Ufa State Aviation TechnicalUniversity, Ufa,Russia
Varghese Mathai, Department of Mathematics, University of Adelaide, Adelaide, Australia
Mikhail A Shubin*, Department of Mathematics, Northeastern University, Boston
(96958147)

Saturday September 22, 2001, 3:00 p.m.4:45 p.m.
Special Session on $L^2$ Methods in Algebraic and Geometric Topology, III
BE 0184, Baker Systems Engineering (BE)
Organizers:
Dan Burghelea, Ohio State University burghele@math.ohiostate.edu
Michael Davis, Ohio State University mdavis@math.ohiostate.edu

3:00 p.m.
Coarse cohomology for foliations.
James L. Heitsch*, University of Illinois at Chicago
(9695856)

4:00 p.m.
Discussion

Sunday September 23, 2001, 9:00 a.m.11:45 a.m.
Special Session on $L^2$ Methods in Algebraic and Geometric Topology, IV
BE 0184, Baker Systems Engineering (BE)
Organizers:
Dan Burghelea, Ohio State University burghele@math.ohiostate.edu
Michael Davis, Ohio State University mdavis@math.ohiostate.edu

9:00 a.m.
$L^2$cohomology of buildings.
Jan Dymara*, The Ohio State University and Wroclaw University
Tadeusz Januszkiewicz, Wroclaw University
(96920112)

10:00 a.m.
$L^2$homology of rightangled Coxeter groups.
Michael W Davis, The Ohio State University
Okun L Boris*, University of Wisconsin, Milwaukee
(96957207)

11:00 a.m.
L2torsion (a survey).
Dan Burghelea*, Ohio State University
(96957254)
Inquiries: meet@ams.org