Joint Mathematics Meetings Program by Special Session
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Inquiries: meet@ams.org
2000 Joint Mathematics Meetings
Washington, DC, January 1922, 2000
Meeting #950
Associate secretaries:
Bernard Russo, AMS brusso@math.uci.edu
James J Tattersall, MAA tat@providence.edu
AMS Special Session on Ergodic Theory and Topological Dynamics of $Z^d$ and $R^d$ Actions

Wednesday January 19, 2000, 8:30 a.m.10:50 a.m.
AMS Special Session on Ergodic Theory and Topological Dynamics of $Z^d$ and $R^d$ Actions, I
Organizers:
E. Arthur Robinson, George Washington University robinson@gwu.edu
Ayse A. Sahin, North Dakota State University sahin@plains.nodak.edu

8:30 a.m.
Expansive subdynamics for algebraic $\mathbb{Z}^d$actions.
Douglas A Lind*, University of Washington
(95037365)

9:00 a.m.
An Example of a Flow with a Single Nonperiodic, Nonexpansive Direction.
Kathleen M Madden*, Drew University
(95058859)

9:30 a.m.
Rank one group actions with mixing simple $\Bbb Z$ subactions.
Blair F Madore*, SUNY Potsdam
(950371183)

10:00 a.m.
Examples of Rank One ${\Bbb Z}^{d}$ Actions.
Cesar E Silva*, Williams College
(950371038)

10:30 a.m.
Multiple mixing for rank one group actions.
Andres del Junco*, University of Toronto
Reem Yassawi, Trent University
(95028878)

Wednesday January 19, 2000, 2:30 p.m.5:20 p.m.
AMS Special Session on Ergodic Theory and Topological Dynamics of $Z^d$ and $R^d$ Actions, II
Organizers:
E. Arthur Robinson, George Washington University robinson@gwu.edu
Ayse A. Sahin, North Dakota State University sahin@plains.nodak.edu

2:30 p.m.
Rigidity of measurable structure for algebraic actions of higherrank abelian groups.
Svetlana Katok*, The Pennsylvania State University
(95058459)

3:00 p.m.
Isomorphism rigidity of simple algebraic $\mathbb{Z}^d$actions.
Bruce Kitchens*, IBM Watson Research Center
Klaus Schmidt, Erwin Schrodinger Institute
(95037225)

3:30 p.m.
Measurable rigidity and disjointness for $\mathbb Z^k$ actions by toral automorphisms.
Boris V Kalinin*, The Pennsylvania State University
Anatole Katok, The Pennsylvania State University
(95000646)

4:00 p.m.
The symbolic dynamics of tiling the integers.
Ethan Coven, Wesleyan University
William Geller*, IUPUI
Sylvia Silberger, Hofstra University
William Thurston, U.C. Davis
(950371211)

4:30 p.m.
Dynamics of multidimensional symbolic substitutions.
Clifford W Hansen*, The George Washington University
(95037624)

5:00 p.m.
Rotational Symmetry and the Topology of Substitution Tilings.
Nicholas S Ormes*, University of Texas
Charles Radin, University of Texas
Lorenzo Sadun, University of Texas
(95037710)

Thursday January 20, 2000, 8:30 a.m.10:50 a.m.
AMS Special Session on Ergodic Theory and Topological Dynamics of $Z^d$ and $R^d$ Actions, III
Organizers:
E. Arthur Robinson, George Washington University robinson@gwu.edu
Ayse A. Sahin, North Dakota State University sahin@plains.nodak.edu

8:30 a.m.
Safe States can be so Infrequent as to be Negligible.
Robert Burton*, Oregon State University
Arthur E Robinson, George Washington University
(950371048)

9:00 a.m.
The Complete Description of $\mathbb Z^d$ Loosely Bernoulli Systems.
Aimee Johnson*, Swarthmore College
Ayse A. Sahin, North Dakota State University
(95037480)

9:30 a.m.
On the existence and nonexistence of finitary codings for a class of random fields.
Jeffrey E Steif*, Georgia Institute of Technology
Jacob van den Berg, CWI
(95028381)

10:00 a.m.
Oscillation in Ergodic Theory: Higher Dimensional Results.
Roger L Jones, DePaul University
Joseph M Rosenblatt*, University of Illinois at UrbanaChampaign
Mate Wierdl, University of Memphis
(95028421)

10:30 a.m.
Invariant measures and entropy of $Z^d$ shifts of finite type.
Arthur E Robinson, Jr., George Washington University
Ayse A Sahin*, North Dakota State University
(950371197)

Thursday January 20, 2000, 2:00 p.m.3:50 p.m.
AMS Special Session on Ergodic Theory and Topological Dynamics of $Z^d$ and $R^d$ Actions, IV
Organizers:
E. Arthur Robinson, George Washington University robinson@gwu.edu
Ayse A. Sahin, North Dakota State University sahin@plains.nodak.edu

2:00 p.m.
Spatial determinism for a free $Z^2$action.
Kyewon Koh Park*, Ajou University
Robert Burton, Oregon State University
(95028364)

2:30 p.m.
Algebraic $Z^d$actions and knot theory.
Daniel S Silver, University of South Alabama
Susan G Williams*, University of South Alabama
(95028728)

3:00 p.m.
Mappings between group shifts.
Anthony N Quas, The University of Memphis
Paul Trow*, The University of Memphis
(95037747)

3:30 p.m.
Conjugacy in tiling dynamics.
Charles Radin*, University of Texas at Austin
(95054359)
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