TY - JOUR AU - A. V. Abramyan AU - V. A. Nogin TI - Complex powers of second-order hypoelliptic operators with constant coefficients in $L_p$-spaces JO - Differencialʹnye uravneniâ PY - 1997 SP - 1134 EP - 1135 VL - 33 IS - 8 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1997_33_8_a17/ LA - ru ID - DE_1997_33_8_a17 ER -