
AMS Sectional Meeting Program by Special Session
Current as of Saturday, April 4, 2009 00:27:23
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Inquiries: meet@ams.org
2009 Spring Central Sectional Meeting
Urbana, IL, March 2729, 2009 (Friday  Sunday)
Meeting #1047
Associate secretaries: Susan J Friedlander, AMS susan@math.northwestern.edu
Special Session on The Logic and Combinatorics of Algebraic Structures

Friday March 27, 2009, 2:00 p.m.5:20 p.m.
Special Session on The Logic and Combinatorics of Algebraic Structures, I
Room 203, Noyes Lab Organizers: John Snow, Concordia University john.snow@cune.edu
Jeremy Alm, Illinois College alm.academic@gmail.com

2:00 p.m.
Relation algebras from group actions.
Jeremy F Alm*, Illinois College
(104703170)

2:30 p.m.
Birelativized relation algebras.
Richard L Kramer*, Iowa State University
(104703121)

3:00 p.m.
Chromatic Graphs, Ramsey Numbers, and the Flexible Atom Conjecture.
Jeremy F. Alm, Illinois College
Roger D. Maddux, Iowa State University
Jacob Manske*, Iowa State University
(10470571)

3:30 p.m.
Relational relevance algebras.
Roger D Maddux*, Iowa State University
(104703100)

4:30 p.m.
Clones with finitely many relative $\mathcal R$classes.
Agnes E. Szendrei*, University of Colorado
Erkko Lehtonen, University of Luxembourg
(104708173)

5:00 p.m.
Moufang sets of finite Morley rank.
Josh Wiscons*, University of Colorado at Boulder
(104720148)

Saturday March 28, 2009, 8:30 a.m.10:50 a.m.
Special Session on The Logic and Combinatorics of Algebraic Structures, II
Room 203, Noyes Lab Organizers: John Snow, Concordia University john.snow@cune.edu
Jeremy Alm, Illinois College alm.academic@gmail.com

8:30 a.m.
Affine complete $G$sets.
Peter Mayr*, JKU Linz, Austria
Andras Pongracz, Eotvos Lorand University
(10470840)

9:00 a.m.
The Grothendieck semiring of the group of complex roots of unity.
Vinicius Cifu Lopes*, Department of Mathematics, University of Illinois at UrbanaChampaign
(10470329)

9:30 a.m.
Categorical Equivalence of Unary Algebras.
Clifford Bergman*, Iowa State University, Department of Mathematics
(104708109)

10:00 a.m.
Free algebras and hereditarily closed families.
Joel Berman*, University of Illinois at Chicago
(104708145)

10:30 a.m.
Residually finite varieties.
Keith A. Kearnes*, University of Colorado
Ross D. Willard, University of Waterloo
(10470857)

Saturday March 28, 2009, 3:00 p.m.4:50 p.m.
Special Session on The Logic and Combinatorics of Algebraic Structures, III
Room 203, Noyes Lab Organizers: John Snow, Concordia University john.snow@cune.edu
Jeremy Alm, Illinois College alm.academic@gmail.com

3:00 p.m.
The complexity of ppdefinability.
Ross Willard*, University of Waterloo
(104703158)

3:30 p.m.
Algebraic conditions forcing NPcompleteness of the Constraint Satisfaction Problem.
Petar Markovic*, University of Novi Sad, Serbia
Ralph McKenzie, Vanderbilt University
Matthew Nickodemus, Vanderbilt University
(104708304)

4:00 p.m.
Algebras of Bounded Width.
Petar Markovic, University of Novi Sad
Ralph McKenzie, Vanderbilt University
Matthew Nickodemus*, Vanderbilt University
(104703395)

4:30 p.m.
Algebra applied to the study of constraint satisfaction problems produces spectacular results both in universal algebra and on the side of computational complexity: a survey of recent work.
Ralph N McKenzie*, Vanderbilt University
Petar Markovic, Vanderbilt University
Matthew Nickodemus, Vanderbilt University
(104708153)

Sunday March 29, 2009, 9:00 a.m.12:20 p.m.
Special Session on The Logic and Combinatorics of Algebraic Structures, IV
Room 203, Noyes Lab Organizers: John Snow, Concordia University john.snow@cune.edu
Jeremy Alm, Illinois College alm.academic@gmail.com

9:00 a.m.
A StoneType Duality for Meet Semilattices.
Aditya K Nagrath*, University of Denver
(10470645)

9:30 a.m.
Observations about perfect lattices.
Kira V Adaricheva*, Stern College for Women, Yeshiva University, New York
(104706306)

10:00 a.m.
Lattices of theories in languages without equality.
J. B. Nation*, University of Hawaii
Tristan Holmes, University of Hawaii
Dayna Kitsuwa, University of Hawaii
Sheri Tamagawa, Roosevelt High School
(104706268)

10:30 a.m.
Interpolation and Amalgamation for Ordered Algebraic Structures.
George Metcalfe*, Vanderbilt University
(10470641)

11:00 a.m.
Subgroups of free idempotentgenerated semigroups.
John C. Meakin*, University of NebraskaLincoln
(104720189)

11:30 a.m.
Comparing the complexity of hyperequivalent operations.
Jonathan D.H. Smith*, Department of Mathematics, Iowa State University
(104708146)

12:00 p.m.
Constrained Eden: Algebras in parallel.
Steve Seif*, Mathematics Department, University of Louisville, Louisville, Kentucky 40292
(104708174)
Inquiries: meet@ams.org

