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1998 The structure of pseudo-holomorphic subvarieties for a degenerate almost complex structure and symplectic form on $S^1 \times B^3$
Clifford Henry Taubes
Geom. Topol. 2(1): 221-332 (1998). DOI: 10.2140/gt.1998.2.221

Abstract

A self-dual harmonic 2–form on a 4–dimensional Riemannian manifold is symplectic where it does not vanish. Furthermore, away from the form’s zero set, the metric and the 2–form give a compatible almost complex structure and thus pseudo-holomorphic subvarieties. Such a subvariety is said to have finite energy when the integral over the variety of the given self-dual 2–form is finite. This article proves a regularity theorem for such finite energy subvarieties when the metric is particularly simple near the form’s zero set. To be more precise, this article’s main result asserts the following: Assume that the zero set of the form is non-degenerate and that the metric near the zero set has a certain canonical form. Then, except possibly for a finite set of points on the zero set, each point on the zero set has a ball neighborhood which intersects the subvariety as a finite set of components, and the closure of each component is a real analytically embedded half disk whose boundary coincides with the zero set of the form.

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Clifford Henry Taubes. "The structure of pseudo-holomorphic subvarieties for a degenerate almost complex structure and symplectic form on $S^1 \times B^3$." Geom. Topol. 2 (1) 221 - 332, 1998. https://doi.org/10.2140/gt.1998.2.221

Information

Received: 2 February 1998; Revised: 20 November 1998; Accepted: 3 January 1999; Published: 1998
First available in Project Euclid: 21 December 2017

zbMATH: 0908.53013
MathSciNet: MR1658028
Digital Object Identifier: 10.2140/gt.1998.2.221

Subjects:
Primary: 53C07
Secondary: 52C15

Rights: Copyright © 1998 Mathematical Sciences Publishers

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