%0 Journal Article %A N. V. Ilyushechkin %T Subdiscriminants of a~symmetric matrix and Jacobians of its invariant mappings %J Sbornik. Mathematics %D 2015 %P 770-781 %V 206 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_2015_206_6_a0/ %G en %F SM_2015_206_6_a0