On the geometry of multi-Dirac structures and Gerstenhaber algebras

Joris Vankerschaver, Hiroaki Yoshimura, Melvin Leok

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

In a companion paper, we introduced a notion of multi-Dirac structures, a graded version of Dirac structures, and we discussed their relevance for classical field theories. In the current paper we focus on the geometry of multi-Dirac structures. After recalling the basic definitions, we introduce a graded multiplication and a multi-Courant bracket on the space of sections of a multi-Dirac structure, so that the space of sections has the structure of a Gerstenhaber algebra. We then show that the graph of a k-form on a manifold gives rise to a multi-Dirac structure and also that this multi-Dirac structure is integrable if and only if the corresponding form is closed. Finally, we show that the multi-Courant bracket endows a subset of the ring of differential forms with a graded Poisson bracket, and we relate this bracket to some of the multisymplectic brackets found in the literature.

Original languageEnglish
Pages (from-to)1415-1425
Number of pages11
JournalJournal of Geometry and Physics
Volume61
Issue number8
DOIs
Publication statusPublished - 2011 Aug 1

Keywords

  • Classical field theories
  • Multi-Dirac structures
  • Multisymplectic forms

ASJC Scopus subject areas

  • Mathematical Physics
  • Physics and Astronomy(all)
  • Geometry and Topology

Fingerprint Dive into the research topics of 'On the geometry of multi-Dirac structures and Gerstenhaber algebras'. Together they form a unique fingerprint.

Cite this