New York Journal of Mathematics
Volume 21 (2015) 1283-1293

  

Ali M. Elgindi

Totally real perturbations and nondegenerate embeddings of S3

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Published: December 7, 2015
Keywords: Complex tangents, real submanifolds of complex space, totally real, 3-sphere
Subject: 32C09, 32V40, 32W99

Abstract
In this article, we demonstrate methods for the local removal and modification of complex tangents to embeddings of S3 into C3. In particular, given any embedding of S3 and a neighborhood of the complex tangents of the embedding, we show that there exists a (C0-close) totally real embedding which agrees with the original embedding outside the given neighborhood of the complex tangents. We also demonstrate that given any knot type K ⊂ S3, either there exists an embedding of S3 which assumes nondegenerate complex tangents exactly along K or there exists a nondegenerate embedding complex tangent along two unlinked copies of K (both cases may hold). We also note possible directions of future investigations.

Acknowledgements

The author was supported in part by IRG grant no. 4010501011418 from Alfaisal University.


Author information

Alfaisal University, Riyadh, Saudi Arabia
aelgindi@alfaisal.edu