AMS Sectional Meeting Program by Day

Current as of Tuesday, April 12, 2005 15:08:44

---

Program  |  Deadlines  |  Inquiries:  meet@ams.org

---

1990 Fall Eastern Sectional Meeting
Amherst, MA, October 20-21, 1990
Meeting #860

Associate secretaries:
W Wistar Comfort, AMS wcomfort@wesleyan.edu

---

Sunday October 21, 1990

• Sunday October 21, 1990, 7:30 a.m.-9:50 a.m.
  Special Session on Hyperbolic Manifolds, III
  Room 20, Goessmann Laboratory
  

  • 7:30 a.m.
    Kleinian groups with two parabolic generators.
    John R. Parker*, University of Maryland, College Park
    (860-30-98)
  • 8:00 a.m.
    Commutators, collars and the geometry of Mobius groups.
    F. W. Gehring*, University of Michigan, Ann Arbor
    G. J. Martin, University of Auckland, New Zealand
    (860-30-95)
  • 8:30 a.m.
    Volume estimates for hyperbolic orbifolds and manifolds.
    F. W. Gehring, University of Michigan, Ann Arbor
    G. J. Martin*, University of Auckland, New Zealand
    (860-30-96)
  • 9:00 a.m.
    Computing the Chern-Simons invariant and the eta invariant for hyperbolic 3-manifolds.
    Robert Meyerhoff*, Boston University
    (860-57-97)
  • 9:30 a.m.
    Growth functions for negatively curved and automatic groups.
    David Epstein*, University of Warwick, England
    (860-57-80)
• Sunday October 21, 1990, 7:30 a.m.-9:50 a.m.
  Special Session on Lattices, Geometry, and Combinatorics, III
  Room 103, Lederle Graduate Research Center
  

  • 7:30 a.m.
    Threshold orders.
    Kenneth P. Bogart*, Dartmouth College
    (860-06-58)
  • 8:00 a.m.
    Computer-assisted combinatorial exploration of finite posets and lattices.
    Curtis Greene*, Haverford College
    (860-05-109)
  • 8:30 a.m.
    Computers and ordered structures.
    George Markowsky*, University of Maine, Orono
    (860-06-93)
  • 9:00 a.m.
    Newman commutativity lattices.
    M. K. Bennett*, University of Massachusetts, Amherst
    Garrett Birkhoff, Harvard University
    (860-06-10)
  • 9:30 a.m.
    Newman associativity lattices.
    Garrett Birkhoff*, Harvard University
    M. K. Bennett, University of Massachusetts, Amherst
    (860-06-102)
• Sunday October 21, 1990, 7:30 a.m.-9:50 a.m.
  Special Session on Discrete Groups and Geometric Structures in 2, 3 and 4 Dimensions, III
  Room 64, Goessmann Laboratory
  

  • 7:30 a.m.
    Pleatings and depleatings of Mobius manifolds, R-trees, and measured geodesic laminations.
    Ravi S. Kulkarni*, Queens College, City University of New York
    Ulrich Pinkall, University of Berlin, Germany
    (860-53-26)
  • 8:00 a.m.
    Dirichlet and Ford domains for Kleinian groups.
    Peter Waterman*, Northern Illinois University
    (860-30-25)
  • 8:30 a.m.
    Cross-sections of the space of Schottky groups of genus two.
    David J. Wright*, Oklahoma State University, Stillwater
    (860-30-136)
  • 9:00 a.m.
    Concentration points for Fuchsian groups.
    Darryl McCullough*, University of Oklahoma
    (860-57-28)
  • 9:30 a.m.
    Discussion
• Sunday October 21, 1990, 7:30 a.m.-9:50 a.m.
  Special Session on Lie Groups and Algebraic Groups, III
  Room 201, Lederle Graduate Research Center
  

  • 7:30 a.m.
    Tensor products of modules with restricted highest weights.
    Cornelius Pillen*, University of Massachusetts, Amherst
    (860-20-133)
  • 8:00 a.m.
    Differential operators and quotient spaces.
    Gerald W. Schwarz*, Brandeis University
    (860-22-21)
  • 8:30 a.m.
    Overgroups of unipotent elements in groups of Lie type.
    Donna M. Testerman*, Wesleyan University
    (860-20-142)
  • 9:00 a.m.
    Some results on symmetric varieties.
    Aloysius G. Helminck*, North Carolina State University
    (860-22-17)
  • 9:30 a.m.
    Quantum deformations of Schubert schemes.
    V. Lakshmibai*, Northeastern University
    N. Reshetikhin, Harvard University
    (860-14-135)
• Sunday October 21, 1990, 7:30 a.m.-9:50 a.m.
  Special Session on Ergodic Theory, III
  Room 203, Lederle Graduate Research Center
  

  • 7:30 a.m.
    On the topological entropy of transitive maps of the interval.
    Melissa C. Hidalgo*, University of Hartford
    (860-58-46)
  • 8:00 a.m.
    A weak type inequality for some nonsingular transformations.
    Idris Assani*, University of North Carolina, Chapel Hill
    (860-28-41)
  • 8:30 a.m.
    Entropy of a skew product with a Z^2-action.
    Kyewon Park*, Bryn Mawr College
    (860-28-37)
  • 9:00 a.m.
    Product structure and joinings for endomorphisms, I.
    Karma Dajani, University of North Carolina, Chapel Hill
    Jane Hawkins*, University of North Carolina, Chapel Hill
    (860-28-39)
  • 9:30 a.m.
    Product structure and joinings for endomorphisms, II.
    Karma Dajani*, University of North Carolina, Chapel Hill
    Jane Hawkins, University of North Carolina, Chapel Hill
    (860-28-40)
• Sunday October 21, 1990, 7:30 a.m.-9:50 a.m.
  Special Session on Aperiodicity and Order, III
  Room 124, Hasbrouck Laboratory
  

  • 7:30 a.m.
    Old theorems about the Penrose pieces.
    John Horton Conway*, Princeton University
    (860-05-139)
  • 8:00 a.m.
    Self-similarity and randomness.
    Murad S. Taqqu*, Boston University
    (860-60-09)
  • 8:30 a.m.
    Aperiodicity and constraints.
    Hao Wang*, The Rockefeller University
    (860-05-35)
  • 9:00 a.m.
    Stabilization of quasicrystals: Energy vs. entropy.
    Sergei Burkov*, Landau Institute for Theoretical Physics, USSR and LASSP, Cornell University
    (860-82-138)
  • 9:30 a.m.
    A non-Pisot five fold symmetric tiling with complex Fourier spectrum.
    Claude Godr\`eche*, Service de Physique du Solide et de R\'esonance Magn\'etique, France
    (860-82-140)
• Sunday October 21, 1990, 8:00 a.m.-9:50 a.m.
  Special Session on Non-linear Dynamics in Mathematics and Science, III
  Room 126, Hasbrouck Laboratory
  

  • 8:00 a.m.
    A geometrical study of an equation for a floating beam.
    Alan C. Lazer*, University of Miami
    P. Joseph McKenna, University of Connecticut, Storrs
    (860-35-115)
  • 8:30 a.m.
    Elliptic KP flows.
    Emma Previato*, Boston University
    (860-58-69)
  • 9:00 a.m.
    Functional and numerical analyses of nonlinear dynamical systems.
    Peter J. Costa*, Raytheon Company, Wayland, Massachusetts
    Ruth Hampton Westlake, Raytheon Company, Wayland, Massachusetts
    (860-46-68)
  • 9:30 a.m.
    Discussion
• Sunday October 21, 1990, 8:00 a.m.-9:50 a.m.
  Special Session on Algebraic Graph Theory, III
  Room 101, Lederle Graduate Research Center
  

  • 8:00 a.m.
    Planar posets are lexicographically shellable.
    Karen L. Collins*, Wesleyan University
    (860-05-29)
  • 8:40 a.m.
    Discussion
  • 9:20 a.m.
    A degree condition for Hamiltonian cycles in t-tough graphs with t>1.
    Douglas Bauer*, Stevens Institute of Technology
    Lewis L. Lasser, Stevens Institute of Technology
    Guantao Chen, Memphis State University
    (860-05-30)
• Sunday October 21, 1990, 8:35 a.m.-9:45 a.m.
  Session on Pure Mathematics
  Room 51, Goessmann Laboratory
  

  • 8:35 a.m.
    Joint embedding for normal models of open induction.
    M. Otero*, Mathematical Institute, University of Oxford, England
    (860-03-127)
  • 8:50 a.m.
    Geodesics and bounded harmonic functions on infinite planar graphs.
    Sam Northshield*, State University of New York, College at Plattsburgh
    (860-05-128)
  • 9:05 a.m.
    Algorithmic trigonometry: Verification of numerical identities.
    Stanley Rabinowitz*, Westford, MA
    (860-12-81)
  • 9:20 a.m.
    Lattices over number fields.
    Richard Margolin*, Princeton University
    (860-20-125)
  • 9:35 a.m.
    Z_p-points of the Chevalley group scheme in a given Bruhat cell.
    Romuald Dabrowski*, Indiana University, Bloomington
    (860-20-143)
• Sunday October 21, 1990, 10:00 a.m.-11:00 a.m.
  Invited Address
  Complex hyperbolic Kleinian groups.
  Room 131, Marcus Hall
  William M. Goldman*, University of Maryland, College Park
  (860-57-72)
• Sunday October 21, 1990, 12:30 p.m.-1:30 p.m.
  Invited Address
  Two compatible symplectic structures.
  Room 131, Marcus Hall
  Henry P. McKean, Jr.*, Courant Institute of Mathematical Sciences, New York University
  (860-70-145)
• Sunday October 21, 1990, 1:45 p.m.-3:05 p.m.
  Special Session on Hyperbolic Manifolds, IV
  Room 20, Goessmann Laboratory
  

  • 1:45 p.m.
    Leafwise negative curvature of laminated 3-manifolds.
    Lee Mosher*, Rutgers University, Newark
    Ulrich Oertel, Rutgers University, Newark
    (860-57-82)
  • 2:15 p.m.
    Dirichlet domains for hyperbolic 3-manifolds.
    Jeff Weeks*, Middlebury, Vermont
    (860-57-99)
  • 2:45 p.m.
    An undetected slope in a knot manifold.
    D. Cooper, University of California, Santa Barbara
    D. D. Long*, University of California, Santa Barbara
    (860-57-129)
• Sunday October 21, 1990, 1:45 p.m.-3:35 p.m.
  Special Session on Lattices, Geometry, and Combinatorics, IV
  Room 103, Lederle Graduate Research Center
  

  • 1:45 p.m.
    Jauch-Piron attributes.
    D. J. Foulis, University of Massachusetts, Amherst
    R. J. Greechie*, Kansas State University
    G. T. R\"uttiman, University of Bern, Switzerland
    (860-06-107)
  • 2:15 p.m.
    Normal functionals, predual Banach spaces, and complemented subspaces arising from quasi manuals.
    Yewande Olubummo, Smith College
    Thurlow Cook*, University of Massachusetts, Amherst
    (860-06-112)
  • 2:45 p.m.
    Classification of attributes.
    D. Foulis*, University of Massachusetts, Amherst
    R. Greechie, Kansas State University
    G. R\"uttimann, University of Bern, Switzerland
    (860-81-59)
  • 3:15 p.m.
    A lattice product.
    Steve Seif*, University of Louisville
    (860-06-121)
• Sunday October 21, 1990, 1:45 p.m.-3:35 p.m.
  Special Session on Discrete Groups and Geometric Structures in 2, 3 and 4 Dimensions, IV
  Room 64, Goessmann Laboratory
  

  • 1:45 p.m.
    Spherical CR manifolds with amenable holonomy.
    Robert R. Miner*, University of Maryland, College Park
    (860-57-05)
  • 2:15 p.m.
    The role of quasiconformality in CR geometry.
    Adam Koranyi*, Herbert H. Lehman College, City University of New York
    (860-32-24)
  • 2:45 p.m.
    Dirichlet polyhedra for cyclic groups in complex hyperbolic space.
    Mark B. Phillips*, University of Richmond
    (860-57-75)
  • 3:15 p.m.
    Complex reflection groups acting on complex hyperbolic space.
    Kurt Sauter*, University of Michigan, Ann Arbor
    (860-57-86)
• Sunday October 21, 1990, 1:45 p.m.-3:35 p.m.
  Special Session on Lie Groups and Algebraic Groups, IV
  Room 201, Lederle Graduate Research Center
  

  • 1:45 p.m.
    Kazhdan-Lusztig conjecture for Kac-Moody algebras.
    Luis Casian*, Ohio State University, Columbus
    (860-22-88)
  • 2:15 p.m.
    On the geometric Langlands conjecture.
    Kari Vilonen*, Brandeis University
    (860-22-144)
  • 2:45 p.m.
    Representations of Chevalley groups arising from admissible lattices.
    Zongzhu Lin*, University of Washington
    (860-20-19)
  • 3:15 p.m.
    Discussion
• Sunday October 21, 1990, 1:45 p.m.-3:05 p.m.
  Special Session on Ergodic Theory, IV
  Room 203, Lederle Graduate Research Center
  

  • 1:45 p.m.
    Commuting endomorphisms of the circle.
    Aimee Johnson*, Tufts University
    Daniel J. Rudolph, University of Maryland, College Park
    (860-28-44)
  • 2:15 p.m.
    Ergodic theory on infinite measure spaces.
    S. J. Eigen*, Northeastern University
    (860-28-67)
  • 2:45 p.m.
    Fixed points for measure preserving homeomorphisms.
    V. S. Prasad*, University of Lowell
    (860-28-08)
• Sunday October 21, 1990, 1:45 p.m.-3:05 p.m.
  Special Session on Aperiodicity and Order, IV
  Room 124, Hasbrouck Laboratory
  

  • 1:45 p.m.
    Discussion

Inquiries:  meet@ams.org

---