%0 Journal Article %A Wang, Feng-Yu %T Semigroup properties for the second fundamental form %J Documenta mathematica %D 2010 %P 527-543 %V 15 %I mathdoc %U https://geodesic-test.mathdoc.fr/item/DOCMA_2010__15__a19/ %G en %F DOCMA_2010__15__a19