TY - JOUR AU - Zagrebnov, Valentin TI - Approximations of self-adjoint \(C_0\)-semigroups in the operator-norm topology JO - Annales Universitatis Mariae Curie-Skłodowska. Mathematica PY - 2019 VL - 73 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AUM_2019_73_2_a3/ LA - en ID - AUM_2019_73_2_a3 ER -