TY - JOUR AU - Janovská, Drahoslava AU - Opfer, Gerhard TI - Fast Givens transformation for quaternion valued matrices applied to Hessenberg reductions JO - Electronic transactions on numerical analysis PY - 2005 SP - 1 EP - 26 VL - 20 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ETNA_2005__20__a15/ LA - en ID - ETNA_2005__20__a15 ER -