Vol. 236, No. 1, 2008

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Generalized complex submanifolds

James Barton and Mathieu Stiénon

Vol. 236 (2008), No. 1, 23–44
Abstract

We introduce the notion of twisted generalized complex submanifolds and describe an equivalent characterization in terms of Poisson–Dirac submanifolds. Our characterization recovers a result of Vaisman (2007). An equivalent characterization is also given in terms of spinors. As a consequence, we show that the fixed locus of an involution preserving a twisted generalized complex structure is a twisted generalized complex submanifold. We also prove that a twisted generalized complex manifold has a natural Poisson structure. We also discuss generalized Kähler submanifolds.

Keywords
generalized complex geometry, Poisson bivector, Poisson–Dirac submanifold
Mathematical Subject Classification 2000
Primary: 53C56, 53D17, 53D35
Milestones
Received: 12 August 2007
Revised: 21 January 2008
Accepted: 23 January 2008
Published: 1 May 2008
Authors
James Barton
Department of Mathematics
Pennsylvania State University
109 McAllister Building
University Park, PA 16802
United States
Mathieu Stiénon
ETH Zurich
Departement Mathematik
Raemistrasse 101
8092 Zurich
Switzerland