We show that the center of the Goldman Lie algebra associated to a closed orientable surface is generated by the class of the trivial loop. For an orientable nonclosed surface of finite type, the center is generated by closed curves which are either homotopically trivial or homotopic to boundary components or punctures.
Keywords: Goldman Lie algebra, hyperbolic surfaces
Kabiraj, Arpan  1
@article{10_2140_agt_2016_16_2839,
author = {Kabiraj, Arpan},
title = {Center of the {Goldman} {Lie} algebra},
journal = {Algebraic and Geometric Topology},
pages = {2839--2849},
year = {2016},
volume = {16},
number = {5},
doi = {10.2140/agt.2016.16.2839},
url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2016.16.2839/}
}
Kabiraj, Arpan. Center of the Goldman Lie algebra. Algebraic and Geometric Topology, Tome 16 (2016) no. 5, pp. 2839-2849. doi: 10.2140/agt.2016.16.2839
[1] , The geometry of discrete groups, 91, Springer (1983) | DOI
[2] , Combinatorial Lie bialgebras of curves on surfaces, Topology 43 (2004) 543 | DOI
[3] , Minimal intersection of curves on surfaces, Geom. Dedicata 144 (2010) 25 | DOI
[4] , The Goldman bracket and the intersection of curves on surfaces, from: "Geometry, groups and dynamics" (editors C S Aravinda, W M Goldman, K Gongopadhyay, A Lubotzky, M Mj, A Weaver), Contemp. Math. 639, Amer. Math. Soc. (2015) 73 | DOI
[5] , , The Goldman bracket determines intersection numbers for surfaces and orbifolds, preprint (2012)
[6] , , An algebraic characterization of simple closed curves on surfaces with boundary, J. Topol. Anal. 2 (2010) 395 | DOI
[7] , , Algebraic characterization of simple closed curves via Turaev’s cobracket, J. Topol. 9 (2016) 91 | DOI
[8] , Casimirs of the Goldman Lie algebra of a closed surface, Int. Math. Res. Not. 2006 (2006) | DOI
[9] , , A primer on mapping class groups, 49, Princeton Univ. Press (2012)
[10] , Invariant functions on Lie groups and Hamiltonian flows of surface group representations, Invent. Math. 85 (1986) 263 | DOI
[11] , Fuchsian groups, University of Chicago Press (1992)
[12] , , The Goldman–Turaev Lie bialgebra and the Johnson homomorphisms, preprint (2013)
[13] , Foundations of hyperbolic manifolds, 149, Springer (2006)
[14] , Skein quantization of Poisson algebras of loops on surfaces, Ann. Sci. École Norm. Sup. 24 (1991) 635
[15] , On the symplectic geometry of deformations of a hyperbolic surface, Ann. of Math. 117 (1983) 207 | DOI
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