Friday, October 28, 2005

Hausdorff distance Hausdorff distance can be defined the same way for closed non-compact subsets of M, but in this case the distance may take infinite value and the topology of F(M) starts to depend on particular metric on M (not only on its topology). The Hausdorff distance between not closed subsets can be defined as the Hausdorff distance between its closures. It gives a pre-metric (or pseudometric) on the set of all subsets of M (Hausdorff distance between any two sets and with the same closures is zero).

Common Errors in College Math page pointed out by Paul Kirk.
Hausdorff metric a good explanation plus applications.

Friday, July 29, 2005

A paper by Goldblatt Seems to be based in the same idea of the paper we did with Larry...

Friday, February 25, 2005

A very good list of electronically available lecture notes on
category theory
, taken from Kurz homepage:


M. Caccamo, J.M.E. Hyland, G. Winskel:
Lecture Notes
in Category Theory.
BRICS Lecture Series, 2001.



M. Fokkinga:

A Gentle Introduction to Category Theory - the calculational
approach.
University of Utrecht, 1992.


Chris Hillman: A
Categorical Primer.
August 2001.


Tom Leinster:

Category Theory.

This page contains an informal
introduction to category theory and, for example, a nice explanation
of the Yoneda Lemma.


Jaap van Oosten:
Basic Category Theory.



D. Turi: Category
Theory Lecture Notes.
LFCS, Univeristy of Edinburgh, 2001.

Indiana University Math departmant: magazine articles