Series: Penn State Logic Seminar

Date: Tuesday, February 10, 2004

Time: 2:30 - 3:45 PM

Place: 307 Boucke Building

Speaker: John Clemens, Penn State, Mathematics

Title: Isometry of Polish Metric Spaces,part 1

  I will discuss the problem of classifying seperable complete metric
  spaces up to isometry. Using descriptive set theory, I will show
  that this problem is very complicated, in the sense that definable
  complete invariants for isometry can not be essentially simpler than
  the isometry class.  I will also discuss the classification problem
  for particular types of metric spaces.