TY - JOUR AU - Alexander Goncharov TI - A compact set without Markov's property but with an extension operator for $C^∞$-functions JO - Studia Mathematica PY - 1996 SP - 27 EP - 35 VL - 119 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/sm-119-1-27-35/ DO - 10.4064/sm-119-1-27-35 LA - en ID - 10_4064_sm_119_1_27_35 ER -