Vol. 282, No. 2, 2016

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The role of the Jacobi identity in solving the Maurer–Cartan structure equation

Ori Yudilevich

Vol. 282 (2016), No. 2, 487–510
Abstract

We describe a method for solving the Maurer–Cartan structure equation associated with a Lie algebra that isolates the role of the Jacobi identity as an obstruction to integration. We show that the method naturally adapts to two other interesting situations: local symplectic realizations of Poisson structures, in which case our method sheds light on the role of the Poisson condition as an obstruction to realization; and the Maurer–Cartan structure equation associated with a Lie algebroid, in which case we obtain an explicit formula for a solution to the equation which generalizes the well-known formula in the case of Lie algebras.

Keywords
Maurer–Cartan equation, symplectic realization, Maurer–Cartan form, Jacobi identity, structure equations, Lie algebroid, Lie algebra, Poisson structure
Mathematical Subject Classification 2010
Primary: 22A22, 22E60, 53D17
Milestones
Received: 19 June 2015
Revised: 12 November 2015
Accepted: 13 December 2015
Published: 3 March 2016
Authors
Ori Yudilevich
Mathematical Institute
Utrecht University
Budapestlaan 6
3584CD Utrecht
Netherlands