%0 Journal Article %A Rossi, Julio D. %T First Variations of the Best Sobolev Trace Constant with Respect to the Domain %J Canadian mathematical bulletin %D 2008 %P 140-145 %V 51 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-2008-016-5/ %R 10.4153/CMB-2008-016-5 %F 10_4153_CMB_2008_016_5