Postnikov system
In homotopy theory, a branch of algebraic topology, a Postnikov system (or Postnikov tower) is a way of decomposing a topological space's homotopy groups using an inverse system of topological spaces whose homotopy type at degree formula_1 agrees with the truncated homotopy type of the original space formula_2. Postnikov systems were introduced by, and are named after, Mikhail Postnikov.
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homotopy theory
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algebraic topology
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topological space
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homotopy group
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inverse system
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homotopy type
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Mikhail Postnikov
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Postnikov system
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Q6941533
Postnikov system
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