By William S. Massey
William S. Massey Professor Massey, born in Illinois in 1920, bought his bachelor's measure from the college of Chicago after which served for 4 years within the U.S. army in the course of international battle II. After the struggle he got his Ph.D. from Princeton college and spent extra years there as a post-doctoral study assistant. He then taught for ten years at the school of Brown college, and moved to his current place at Yale in 1960. he's the writer of diverse study articles on algebraic topology and comparable subject matters. This publication built from lecture notes of classes taught to Yale undergraduate and graduate scholars over a interval of numerous years.