LetMbeanndimensionalcompleteRiemannianmanifoldsatisfyingthedoublingvolumepropertyandanon-diagonalheatkernelestimate.Thenecessary-sufficientconditionfortheSobolevinequality‖f‖q≤Cn,,v,p,q(‖▽f‖p+‖fp)(2≤p＜q＜∞)isgiven.
数学年刊：B辑英文版
2005年4期
