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Whitney Approximation for Smooth CW Complex

Algebraic Topology 2022-08-12 v4 Geometric Topology

Abstract

We show a Whitney Approximation Theorem for a continuous map from a manifold to a smooth CW complex. This enables us to show that a topological CW complex is homotopy equivalent to a smooth CW complex in a category of topological spaces. It is also shown that, for any open covering of a smooth CW complex, there exists a partition of unity subordinate to the open covering.

Keywords

Cite

@article{arxiv.2001.02893,
  title  = {Whitney Approximation for Smooth CW Complex},
  author = {Norio Iwase},
  journal= {arXiv preprint arXiv:2001.02893},
  year   = {2022}
}

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10 pages