The Euler characteristic of a generic wavefront in a 3-manifold

Izumiya, S.; Marar, W. L.

doi:10.1090/S0002-9939-1993-1165055-4

Proceedings of the American Mathematical Society

Published by the American Mathematical Society since 1950, Proceedings of the American Mathematical Society is devoted to shorter research articles in all areas of pure and applied mathematics.

ISSN 1088-6826 (online) ISSN 0002-9939 (print)

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The Euler characteristic of a generic wavefront in a $3$-manifold
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by S. Izumiya and W. L. Marar PDF

Proc. Amer. Math. Soc. 118 (1993), 1347-1350 Request permission

Abstract:

We give a relation between Euler characteristics of a generic closed Legendrian surface and its wavefront.

References

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W. L. Marar, The Euler characteristic of the disentanglement of the image of a corank $1$ map germ, Singularity theory and its applications, Part I (Coventry, 1988/1989) Lecture Notes in Math., vol. 1462, Springer, Berlin, 1991, pp. 212–220. MR 1129034, DOI 10.1007/BFb0086384