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Excisive triad

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In topology, a branch of mathematics, an excisive triad is a triple of topological spaces such that A, B are subspaces of X and X is the union of the interior of A and the interior of B.[1] Note B is not required to be a subspace of A.

See also

Notes

  1. ^ May, Ch 10. Section 7.

References

  • J. P. May, A concise course in algebraic topology
  • Munkres, James; Topology, Prentice Hall; 2nd edition (December 28, 1999). ISBN 0-13-181629-2.


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