TY - JOUR AU - Shigenori Matsumoto TI - There are Two Isotopic Morse-Smale Diffeomorphisms Which Cannot be Joined by Simple Arcs. JO - Inventiones mathematicae PY - 1979 SP - 1 EP - 8 VL - 51 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM_1979__51_142618/ ID - IM_1979__51_142618 ER -