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 Semigroups and Their Applications

Friday October 24, 1997, 9:00 a.m.10:50 a.m.
Special Session on Semigroups and Their Applications, I
Room 147, Physics Building
Organizers:
Karl E. Byleen, Marquette University karlb@marque.mscs.mu.edu
Peter R. Jones, Marquette University jones@mscs.mu.edu

9:00 a.m.
One relator inverse monoids with trivial group of units.
John C Meakin*, University of Nebraska at Lincoln
(92720344)

9:30 a.m.
HNN extensions of semilattices
Akihiro Yamamura*, Telecommunications Advancement Organization of Japan
(92720111)

10:00 a.m.
HNNextensions of inverse semigroups.
Tatiana Jajcayova*, University of Nebraska at Lincoln
(92720335)

10:30 a.m.
Endomorphisms of finite symmetric semigroups.
Boris M. Schein*, University of Arkansas, Fayetteville, Arkansas
(92720281)

Friday October 24, 1997, 2:30 p.m.4:50 p.m.
Special Session on Semigroups and Their Applications, II
Room 147, Physics Building
Organizers:
Karl E. Byleen, Marquette University karlb@marque.mscs.mu.edu
Peter R. Jones, Marquette University jones@mscs.mu.edu

2:30 p.m.
Semigroups Generated by a Group and an Idempotent.
Donald B McAlister*, Northern Illinois University
(92720329)

3:00 p.m.
On varieties of epigroups with completely regular square.
Tatyana A Ershova*, Marquette University, Milwaukee, WI
(92720337)

3:30 p.m.
Pseudovarieties of inverse monoids and equations in groups.
Robert L. Ruyle*, University of Nebraska at Lincoln
(92720356)

4:00 p.m.
Lattice isomorphisms of regular semigroups
K. G. JohnstonThom*, University of Charleston
(92720280)

4:30 p.m.
Finite Primitive Semigroups.
Steven Seif*, University of Louisville
Johnny Ray Sena, University of Louisville
(92720373)

Saturday October 25, 1997, 9:00 a.m.10:50 a.m.
Special Session on Semigroups and Their Applications, III
Room E230, Engineering and Mathematical Sciences Building
Organizers:
Karl E. Byleen, Marquette University karlb@marque.mscs.mu.edu
Peter R. Jones, Marquette University jones@mscs.mu.edu

9:00 a.m.
Monoid deformations and group representations
Mohan S Putcha*, North Carolina State Univ
(92720105)

9:30 a.m.
Quasiregular Algebraic Monoids
Lex E. Renner*, University of Western Ontario
(92720277)

10:00 a.m.
Flatness properties of $S$acts
Sydney BulmanFleming*, Wilfrid Laurier University
(92720136)

10:30 a.m.
Free semigroups in the variety $x^2=x^3$.
Joseph B. Stephen*, Northern Illinois University
(92720376)

Saturday October 25, 1997, 2:30 p.m.4:50 p.m.
Special Session on Semigroups and Their Applications, IV
Room E230, Engineering and Mathematical Sciences Building
Organizers:
Karl E. Byleen, Marquette University karlb@marque.mscs.mu.edu
Peter R. Jones, Marquette University jones@mscs.mu.edu

2:30 p.m.
Commutative semigroup cohomology
P. A. Grillet*, Tulane University
(9272038)

3:00 p.m.
Congruences of $S_n$normal semigroups
Inessa Levi*, University of Louisville
(92720218)

3:30 p.m.
Semigroups and Social Networks.
George R Barnes*, University of Louisville
Patrica B Cerrito, University of Louisville
Inessa Levi, University of Louisville
(92720379)

4:00 p.m.
Identities of finite semigroups.
Olga Sapir*, University of Nebraska
(92720378)

4:30 p.m.
Dehn functions of groups.
Mark V Sapir*, Vanderbilt University
(92720377)
Inquiries: meet@ams.org