User talk:Geometry guy
Welcome to my (rather minimalist) user and user talk page: please leave comments, questions, complaints, or just general chat below. Please provide direct links to issues you raise. I am contributing rather sporadically at present and can't promise to reply, but if I do I will reply here: if I take a while and it is important, I will drop a note on your talk page.
Hi GeometryGuy. I see from the talk page at Cartan connection that you stand out among the contributors and commenters there as somebody who really understands what's going on. Therefore for the moment this private message here instead of a comment on that talk page. Of course one of the causes of many people's confusion here is that would-be authorative sources such as notably Sharpe's book make what should be a clear statement become much more mysterious than it ought to be. At one point this still affects the entry: Sharpe has this curious way of stating the definition via Cech cocycles (aka "gauge transitions") without stating the cocycle condition for the transition functions itself. Instead he considers the effective situation where they are uniquely fixed already by the local 1-form data and then switches from Cech cocycles to Ehresmann connection data for the general case. But in the Wikipedia entry on Cartan connection it would be better to state this correctly, by adding to the paragraph "via gauge transitions" the cocycle condition . Urs Schreiber (talk) 00:25, 16 December 2014 (UTC)
- Thanks, and good point. There is so much still wrong with that article I can hardly bear to look at it again. Please go ahead and fix it if you have time. I will take a closer look when I can. Geometry guy 22:42, 22 December 2014 (UTC) PS. You do great work at the nLab.
- Thanks, Gerda, for your reminder of the wonderful community spirit there is here. It is extraordinary what Wikipedians can and have accomplished when focussed on the ideals we share rather than the issues that divide us. Geometry guy 22:08, 25 March 2015 (UTC)
- Thank you, I feel the same, and appreciate it today especially when I had to revert a user on my talk who didn't read "Every editor is a human being" in my edit notice (yes, still there), - something I don't like to do. I just nominated a singer for DYK who died, - putting it all in perspective. --Gerda Arendt (talk) 22:15, 25 March 2015 (UTC)