English

Regularizing a singular special Lagrangian variety

Differential Geometry 2007-05-23 v2 Analysis of PDEs

Abstract

Suppose M1M_{1} and M2M_{2} are two special Lagrangian submanifolds of \Rtn\Rtn with boundary that intersect transversally at one point pp. The set M1M2M_{1} \cup M_{2} is a singular special Lagrangian variety with an isolated singularity at the point of intersection. Suppose further that the tangent planes at the intersection satisfy an angle condition (which always holds in dimension n=3n=3). Then, M1M2M_{1} \cup M_{2} is regularizable; in other words, there exists a family of smooth, minimal Lagrangian submanifolds MαM_{\alpha} with boundary that converges to M1M2M_{1} \cup M_{2} in a suitable topology. This result is obtained by first gluing a smooth neck into a neighbourhood of M1M2M_{1} \cap M_{2} and then by perturbing this approximate solution until it becomes minimal and Lagrangian.

Keywords

Cite

@article{arxiv.math/0110053,
  title  = {Regularizing a singular special Lagrangian variety},
  author = {Adrian Butscher},
  journal= {arXiv preprint arXiv:math/0110053},
  year   = {2007}
}

Comments

Final version; will appear in Communications of Analysis and Geometry. Includes more comprehensive introduction and acknowledgements