This is a topology book for undergraduates,and in writing it I have had two aims in mind.Firstly,to make sure the student sees a variety of defferent techniques and applications involving point set,ge
《代數拓撲中微分形式》內容為:The guiding principle in this book is to use differential forms as an aid inexploring some of the less digestible aspects of algebraic topology. Accord-ingly, we move primarily in the r
《代數拓撲導論(英文版)》介紹了:There is a canard that every textbook of algebraic topology either ends with the definition of the Klein bottle or is a personal communication to .I.H.C. Whitehead. Of course, this is
R,ational homotopy theory has the disadvantage of discarding a considerable amount of information. For example, the homotopy groups of the sphere S''2 are non-zero in infinitelv many degrees whereas