Tim Porter's response to Stasheff and a url for his workshop....DMD _____________________________________________________________ Date: Fri, 12 May 2000 10:41:03 +0100 (BST) From: "T.Porter" Subject: Re: question and workshop > > Date: Thu, 11 May 2000 11:48:12 -0400 (EDT) > From: James Stasheff > > Any recommendations for text(s) that show many examples > of HOW to decompose a space into U \union V for > either Seifert-VanKampen or Mayer-Vietoris?? > > .oooO Jim Stasheff jds@math.unc.edu > (UNC) Math-UNC (919)-962-9607 > \ ( Chapel Hill NC FAX:(919)-962-2568 > \*) 27599-3250 > > http://www.math.unc.edu/Faculty/jds Dear All, but Jim in particular. One of my favourite sources for examples of the S vK theorem in action is Crowwel and Fox's graduate text INTRODUCTION TO KNOT THEORY. Massey's old book on algebraic topology is also good and Nick Goilbert and I tried to emulate these sources in our book on Knots and Surfaces (see http://www.ma.hw.ac.uk/~nick/kands.html) When writing that we did try to show the theorem at work rather than proving it in detail. For Mayer Vietoris, I have no particular preference, but for all such decompositions perhaps Morse theory should be considered as a method which has nice geometric structure and in general geometric topology is perhaps the place to look for such `HOW' answers. I hope this helps, Tim Date: Fri, 12 May 2000 10:24:22 +0100 (BST) From: "T.Porter" Subject: Re: workshop By error I missed out the URL for the Orbifold meeting: http://www.bangor.ac.uk/ma/news/orbifold/welcome.html Thanks, Tim ************************************************************ Timothy Porter |tel direct: +44 1248 382492 Mathematics Division, |World Wide Web School of Informatics, |home page: http://www.bangor.ac.uk/~mas013/ University of Wales, Bangor |Mathematics and Knots : exhibition Dean St. |http://www.bangor.ac.uk/ma/CPM/ Bangor | Gwynedd LL57 1UT | United Kingdom | ************************************************************ Timothy Porter |tel direct: +44 1248 382492 Mathematics Division, |World Wide Web School of Informatics, |home page: |http://www.bangor.ac.uk/~mas013/ University of Wales, Bangor |Mathematics and Knots : exhibition Dean St. |http://www.bangor.ac.uk/ma/CPM/ Bangor | Gwynedd LL57 1UT | United Kingdom |