TY - JOUR AU - Gaál, Marcell TI - Maps on Quantum States in $C^{\ast }$-algebras Preserving von Neumann Entropy or Schatten $p$-norm of Convex Combinations JO - Canadian mathematical bulletin PY - 2019 SP - 75 EP - 80 VL - 62 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-2018-011-3/ DO - 10.4153/CMB-2018-011-3 ID - 10_4153_CMB_2018_011_3 ER -