%0 Journal Article %A M. Seto %A S. Suda %T Gram matrices of reproducing kernel Hilbert spaces over graphs IV. (Quadratic inequalities for graph Laplacians) %J Algebra i analiz %D 2019 %P 143-155 %V 31 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/AA_2019_31_1_a7/ %G en %F AA_2019_31_1_a7