Titlebook: Elements of Homotopy Theory; George W. Whitehead Textbook 1978 The Editor(s) (if applicable) and The Author(s), under exclusive license to

驚奇

Myocyte

,The Role of Tomorrow’s Manager,In Chapter V we showed how to use the process of attaching cells to construct CW-complexes with desired properties. In this Chapter we shall exploit this process further, one of our aims being to show how any space can be built up, up to homotopy type, out of Eilenberg-MacLane spaces.

不遵守

phytochemicals

Postnikov Systems,In Chapter V we showed how to use the process of attaching cells to construct CW-complexes with desired properties. In this Chapter we shall exploit this process further, one of our aims being to show how any space can be built up, up to homotopy type, out of Eilenberg-MacLane spaces.

commonsense

薄膜

使顯得不重要

離開(kāi)就切除

Andrew M. McCosh,Michael S. Scott Mortonin . which end at the base point; then the map .: P’(B) . . defined by . = .(0) is a fibration with . as fibre. The total space P’(.) being acyclic, the boundary operator . is an isomorphism, and the map . induces . the homomorphism

縮影

Introductory Notions,ns of homotopy theory: extension and lifting problems. The notion of hom-otopy is introduced, and its connection with the above problems discussed. This leads to a formulation of fibrations and cofibrations, which have played such a fundamental role in the development of the subject.

deviate