%0 Journal Article %A N. V. Ilyushechkin %T On the multiplicities of eigenvalues of a pair of quadratic forms %J Matematičeskoe obrazovanie %D 2024 %P 26-30 %V 111 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/MO_2024_111_3_a3/ %G ru %F MO_2024_111_3_a3