Logic Seminar M975

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Wed Sept  7,9,12,14 David Milovich "Families of open sets which
are omega-like with respect to containment" see
http://www.math.wisc.edu/~milovich/omegaop.pdf

Fri Sept 16,19,21,?23?  Christopher Alfeld "Non-Branching Degrees
in the Medvedev Lattice of Pi01 Classes" see
http://www.math.wisc.edu/~alfeld/nonbranching.pdf

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coming attractions:

Erik Andrejko will present: Justin Moore "A Five Element Basis for
the Uncountable Linear Orders." see
http://front.math.ucdavis.edu/math.LO/0501525

Dilip Raghavan will present:  Uri Abraham "Proper forcing." to
appear in: Handbook of Set Theory. Foreman, Kanamori, and Magidor
(eds.) see:
http://www.cs.bgu.ac.il/~abraham/papers/math/Proper.dvi

Jaime Posada will present some results on the Banach-Tarski
paradox.  see Dougherty, Randall; Foreman, Matthew Banach-Tarski
paradox using pieces with the property of Baire. Proc. Nat. Acad.
Sci. U.S.A. 89 (1992), no. 22, 10726-8.

Derek Moffitt will present a paper of Kunen about Ramsey's Theorem
and finite fields.  I am not sure which one.

From Asher Kach: (In response to my proding) "Hopefully I'll solve
the problem I've been working on in the near future...  There is
some evidence to suggest that the solution isn't that far away
(hopefully!). If I do, then I'd be happy to present its
solution."  Asher is not registered in 975  - thanks for coming
anyway Asher!  and Hopefully you will continue to do so.

David Fremlin will be speaking (Fri Oct 28 and maybe more) about
the Control Measure Problem.  There has been some major progress
on the general theory of Maharam algebras but no suggestion that
it will lead to a decision about CMP.  He will also be speaking in
the logic colloquium on Oct 27. see
http://www.essex.ac.uk/maths/staff/fremlin/n05622.ps

I will fill-in between student talks by nattering on about
Q-sets.  These are uncountable separable metric spaces with the
property that every subset is the countable union of closed sets
(i.e., F_sigma). See: www.math.wisc.edu/~miller/res/madq.pdf  for
my latest caterwauling on this subject.

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Other students enrolled in the class:

James Hunter will not be attending or giving a talk as he has
another class in the Engineering building which overlaps in time.

Jon Godshall will be attending only Mon and Fri as he is supposed
to be  sitting in the calculus lecture he is TA for.  He tells me
that he needs the class to fulfill a minor requirement in logic
but is planning to go into the field of Lie-Algebras.

The following are also registered but I don't know if any are
willing to speak:

 Kiernan,Kathleen Postlewaite
 McGinn,Daniel Patrick
 Supanich,Jodi Ann
 Tsai,Eugene Yang

One might think just because Dan and Eugene don't come to class
that they don't plan to give a talk.  However, Dilip doesn't come
either and he seems to be planning to speak.  So, one can never
tell.