TY - JOUR AU - J. Tervo TI - On algebraic characterization of coercive linear partial differential operators with constant coefficients JO - Annales Polonici Mathematici PY - 1988 SP - 209 EP - 219 VL - 49 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/ap-49-3-209-219/ DO - 10.4064/ap-49-3-209-219 LA - en ID - 10_4064_ap_49_3_209_219 ER -