%0 Journal Article %A Kupin, Stanislav %T On sum rules of special form for Jacobi matrices %J Comptes Rendus. Mathématique %D 2003 %P 611-614 %V 336 %N 7 %I Elsevier %U http://www.numdam.org/articles/10.1016/S1631-073X(03)00132-8/ %R 10.1016/S1631-073X(03)00132-8 %G en %F CRMATH_2003__336_7_611_0