Abstract
Given the Euclidean space ℝ2n+2 endowed with a constant symplectic structure and the standard flat connection, and given a polynomial of degree 2 on that space, Baguis and Cahen [1] have defined a reduction procedure which yields a symplectic manifold endowed with a Ricci-type connection. We observe that any symplectic manifold (M, ω) of dimension 2n (n ≥ 2) endowed with a symplectic connection of Ricci type is locally given by a local version of such a reduction.
We also consider the reverse of this reduction procedure, an induction procedure: we construct globally on a symplectic manifold endowed with a connection of Ricci type(M, ω, ∇) a circle or a real line bundle which embeds in a flat symplectic manifold (P, μ, ∇1) as the zero set of a function whose third covariant derivative vanishes in such a way that (M, ω, ∇) is obtained by reduction from (P, μ, ∇1).
We further develop the particular case of symmetric symplectic manifolds with Ricci-type connections.
This research was partially supported by an Action de Recherche Concertée de la Communauté française de Belgique.
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References
P. Baguis and M. Cahen, A construction of symplectic connections through reduction, Lett. Math. Phys., 57 (2001), 149–160.
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M. Cahen, S. Gutt, and J. Rawnsley, Symmetric symplectic spaces with Ricci-type curvature, in G. Dito and D. Sternheimer, eds., Conférence Moshé Flato 1999: Quantization, Deformations, and Symmetries, Vol. II, 1999, Mathematical Physics Studies, Vol. 22, Kluwer Academic Publishers, Dordrecht, The Netherlands, 2000, 81–91.
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It is a pleasure to dedicate this paper to Alan Weinstein on the occasion of his 60th birthday.
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Cahen, M., Gutt, S., Schwachhöfer, L. (2005). Construction of Ricci-type connections by reduction and induction. In: Marsden, J.E., Ratiu, T.S. (eds) The Breadth of Symplectic and Poisson Geometry. Progress in Mathematics, vol 232. Birkhäuser Boston. https://doi.org/10.1007/0-8176-4419-9_2
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DOI: https://doi.org/10.1007/0-8176-4419-9_2
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