Lang Xie作者谢朗，1971年至1977年，在沈阳一家机械厂工作当技术工人。1978年至1982年，ई四川大学数学系读本科。1982年至1985年，在南开大学数学系读硕士；1985年至1987年，在美国伊利诺伊大学分校数学系留学。1987年至1997年，在大连辽宁师范大学数学系任教，主要从事代数拓扑、同伦论、阻碍论、现代控制理论等领域学术研究，在大学任教期间教授过西方经济学。目前退休。Lang Xie is the author of this book. He worked as a technical worker in a machinery factory in Shenyang from 1971 to 1977. He was an undergraduate student in the Department of Mathematics at Sichuan University from 1978 to 1982, and a master's student in the Department of Mathematics at Nankai University from 1982 to 1985. He studied in the Mathematics Department at the University of Illinois, USA from 1985 to 1987. From 1987 to 1997, he taught at the Department of Mathematics at Liaoning Normal University in Dalian, mainly engaged in academic research in the fields of algebraic topology, homotopy theory, obstruction theory, and modern control theory. He also taught Western Economics at the university. He is currently retired. Read More Read Less
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