00309nam a2200121Ia 4500082001800000100003200018245006400050250000900114260003100123300000600154500000500160700002200165  a510.3bJ35.ED  aJapan. Mathematical Society  aEncyclopedic dictionary of mathematicsbcEd. by Kiyosi Ito  a2nd.  aCambridgebMIT Pressc1987  a   a  aIto, Kiyosi ; ed.