The Eckmann–Hilton dual of the Postnikov decomposition of a space is the homology decomposition (or Moore space decomposition) ([Zab76, page 44], [Hil65, BJCJ59,Moo]) of a space. Let us give a brief review of this decomposition, based on dualizing the Postnikov decomposition.
KeywordsExact Sequence Homotopy Class Homotopy Group Homotopy Theory Perverse Sheaf
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