Skip to main content
7 events
when toggle format what by license comment
Oct 6, 2015 at 12:29 comment added username It is all about what definition you use for coercivity. Many problems are fine, of course, as they are just like the scalar ones, e.g. uniformly convex ones, diagonally dominant problems ...
Mar 22, 2012 at 19:00 comment added Mircea I don't know how much you want to be precise in imitating the arguments, but if you admit some sloppiness, then you'll be in trouble finding anything not using those methods. There is the "small energy implies regularity" result for systems (as in the treatment Evans in the answer of Hung Tran below) where the excess decay is proved much like in De Giorgi's method. A bootstrap like Moser is instead present in the very influential paper by Uhlenbeck form 1977 (Regularity for a class of non-linear elliptic systems. Acta Math. 138 (1977), no. 3-4, 219–240.).
Sep 15, 2010 at 18:11 vote accept timur
Sep 15, 2010 at 17:24 history edited Johannes Hahn CC BY-SA 2.5
source added
Sep 15, 2010 at 17:18 comment added Johannes Hahn You're right: There are cases where a De-Giorgi-type argument still works and this is currently an active field of research. I don't know a specific example.
Sep 15, 2010 at 15:52 comment added timur Thanks a lot for your answer! It seems that one counterexample would not rule out the possibility that the argument can be applied to specific situations. Or this example just kills everything? Do you know a specific example where similar type of argument has been successfully applied?
Sep 15, 2010 at 9:39 history answered Johannes Hahn CC BY-SA 2.5