
Archives
 January 2018
 February 2017
 September 2015
 July 2015
 December 2014
 November 2014
 October 2014
 September 2014
 August 2014
 July 2014
 January 2014
 November 2013
 September 2013
 July 2013
 May 2013
 April 2013
 March 2013
 February 2013
 December 2012
 October 2012
 September 2012
 August 2012
 July 2012
 June 2012
 May 2012
 April 2012
 February 2012
 January 2012
 December 2011
 November 2011
 October 2011
 September 2011
 August 2011
 June 2011

Meta
Monthly Archives: May 2012
Why aren’t there three variants of ECH?
Frequently asked question: Heegaard Floer homology comes in three variants which fit into an exact triangle, namely , , and . Likewise for SeibergWitten Floer homology which has , , and . So why is there only one ECH? Answer: … Continue reading
Posted in ECH
Leave a comment
ECH as a (symplectic) field theory
Consider the following question: Given a closed symplectic 4manifold with a separating contact type hypersurface , how can one compute Taubes’s Gromov invariant of by cutting along and pairing some kind of relative ECH of the two pieces? If I’m … Continue reading
Strong cobordisms and the ECH contact invariant
I haven’t yet finished my end of semester duties, but as procrastination, here is a math post. If I am not mistaken, there is a simple argument to prove the following, answering a question which Chris Wendl asked me a … Continue reading
Is this a scam?
There is a lot of math stuff which I would like to post here, but I won’t really have time for that until the semester is over. Â Meanwhile, here is a strange email I received and my reply to it: … Continue reading
Posted in Uncategorized
3 Comments