### Logic List Mailing Archive

## Workshop on Vaught's Conjecture, Notre Dame, May 2005

Dear Colleague:
There will be a workshop on classification of countable structures, work
growing out of Vaught's Conjecture, to be held at the University of Notre
Dame, May 17--24, 2005 (May 17 is arrival day, while May 24 will include
talks).
Vaught's Conjecture has led to a great deal of interesting work on
classification, from different points of view. ?There is a large body of
deep work in model theory, giving conditions under which a class of
structures does or does not admit a nice structure theory. ?In descriptiv
e
set theory also, there is a large body of work, measuring the complexity
of the isomorphism relation between members of a given class, and
comparing classes by means of Borel embeddings. ?In computability theory,
there is considerable interest in classification, especially for
computable structures.
The workshop is intended to bring together researchers from model theory,
descriptive set theory, and computability. ?There will be tutorial-style
lectures, to help members of each group understand what members of the
other groups have done and hope to do. ?There will be time for informal
discussion. ? The workshop should be useful to graduate students, as well
as senior researchers.
The following people have said that they plan to participate.
Su Gao, University of North Texas
Greg Hjorth, UCLA
Alexander Kechris, Caltech
Chris Laskowski, University of Maryland
David Marker, University of Illinois-Chicago
Ludomir Newelski, Wroclaw, POLAND
Richard Shore, Cornell University
Reed Solomon, University of Connecticut
Joanna Franklin, UC Berkeley
Alice Chan, MIT
Christina Goddard, MIT
If you would like to attend, please let us know. Also, please share this
announcement with other people, in particular, with graduate students who
may be interested.
Yours truly,
Steve Buechler, Peter Cholak, Julia Knight, Gerald Sacks, Sergei
Starchenko