Mathematical Research Letters

Volume 4 (1997)

Number 3

A fake smooth $\Bbb{CP}^2\#\Bbb{RP}^4$

Pages: 375 – 378

DOI: https://dx.doi.org/10.4310/MRL.1997.v4.n3.a6

Authors

Daniel Ruberman (Brandeis University)

Ronald J. Stern (University of California at Irvine)

Abstract

We show that the manifold $ *\Bbb{CP}^2\# *\Bbb{RP}^4$, which is homotopy equivalent but not homeomorphic to $ \Bbb{CP}^2 \# \Bbb{RP}^4 $, is in fact smoothable.

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Published 1 January 1997