%0 Journal Article %A Tachikawa, Hiroyuki %T Loewy coincident algebra and $QF$-3 associated graded algebra %J Czechoslovak Mathematical Journal %D 2009 %P 583-589 %V 59 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMJ_2009__59_3_a1/ %G en %F CMJ_2009__59_3_a1