%0 Journal Article %A Sinan Sertöz %T Pieri-type intersection formulas and primary obstructions for decomposing $2$-forms %J Colloquium Mathematicum %D 2001 %P 201-210 %V 87 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm87-2-6/ %R 10.4064/cm87-2-6 %G en %F 10_4064_cm87_2_6