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G-structures and Families of Isotropic Submanifolds in Complex Contact Manifolds
Stockholm University, Faculty of Science, Department of Mathematics.
2007 (English)Doctoral thesis, monograph (Other academic)
Abstract [en]

We study a generalized twistor correspondence between irreducible G-structures (with torsion in general) on complex manifolds Z and moduli spaces M of deformations of isotropic homogeneous submanifolds X in complex contact manifolds Y.

For any irreducible G-structure on a complex manifold M we present an explicit construction of a contact manifold (a generalized twistor space) Y with contact line bundle L and a family F of isotropic submanifolds X in Y having M as its moduli space. We study those special properties of this family which encode geometric invariants of the original G-structure.

Conversely, given a contact manifold (Y,L) and an homogeneous isotropic submanifold X in Y satisfying certain properties, we show that the associated moduli space M of isotropic deformations of X inside Y has an induced G-structure, Gind, and then show how the invariant torsion of Gind can be read off from certain cohomology groups canonically associated with the holomorphic embedding data of X in Y.

Place, publisher, year, edition, pages
Stockholm: Matematiska institutionen , 2007. , 100 p.
Keyword [en]
Differential geometry, twistor, G-structures, deformation
National Category
Mathematics
Research subject
Mathematics
Identifiers
URN: urn:nbn:se:su:diva-7007ISBN: 978-91-7155-490-1 (print)OAI: oai:DiVA.org:su-7007DiVA: diva2:197463
Public defence
2007-09-18, sal 14, hus 5, Kräftriket, Stockholm, 13:00
Opponent
Supervisors
Available from: 2007-08-21 Created: 2007-08-20Bibliographically approved

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  • apa
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Output format
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