Mathematics > Differential Geometry
[Submitted on 2 Feb 2014 (v1), last revised 10 Feb 2014 (this version, v2)]
Title:Strongly Homotopy Lie Algebras from Multisymplectic Geometry
View PDFAbstract:This Master Thesis is devoted to the study of $n$-plectic manifolds and the Strongly Homotopy Lie algebras, also called $L_{\infty}$-algebras, that can be associated to them. Since multisymplectic geometry and $L_{\infty}$-algebras are relevant in Theoretical Physics, and in particular in String Theory, we introduce the relevant background material in order to make the exposition accessible to non-experts, perhaps interested physicists. The background material includes graded and homological algebra theory, fibre bundles, basics of group actions on manifolds and symplectic geometry. We give an introduction to $L_{\infty}$-algebras and define $L_{\infty}$-morphisms in an independent way, not yet related to multisymplectic geometry, giving explicit formulae relating $L_{\infty}[1]$-algebras and $L_{\infty}$-algebras. We give also an account of multisymplectic geometry and $n$-plectic manifolds, connecting them to $L_{\infty}$-algebras. We then introduce, closely following the work {1304.2051} of Yael Fregier, Christopher L. Rogers and Marco Zambon, the concept of homotopy moment map. The new results presented here are the following: we obtain specific conditions under which two $n$-plectic manifolds with strictly isomorphic Lie-$n$ algebras are symplectomorphic, and we study the construction of an homotopy moment map for a product manifold, assuming that the factors are $n$-plectic manifolds equipped with the corresponding homotopy moment maps.
Submission history
From: Carlos Shahbazi [view email][v1] Sun, 2 Feb 2014 02:10:25 UTC (131 KB)
[v2] Mon, 10 Feb 2014 02:32:10 UTC (130 KB)
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