Geodesic
Homology and Cohomology of the Lamplighter Lie Algebra
Trudy Matematicheskogo Instituta imeni V.A. Steklova, Toric Topology, Group Actions, Geometry, and Combinatorics. Part 2, Tome 318 (2022), pp. 166-176.

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It is shown that the lamplighter Lie algebra $\mathfrak l$ over the field of rational numbers, introduced by S. Ivanov, R. Mikhailov, and A. Zaikovskii, is isomorphic to the infinite-dimensional naturally graded Lie algebra of maximal class $\mathfrak m_0$. Y. Félix and A. Murillo proved that its $q$-dimensional homology $H_q(\mathfrak l,\mathbb Q)$ is infinite-dimensional. However, they failed to completely calculate the spaces $H_q(\mathfrak l,\mathbb Q)$, $q\ge 3$. In this paper, an infinite basis of the bigraded homology $H_{*,*}(\mathfrak l,\mathbb Q)$ is explicitly constructed using the results of D. Millionshchikov and A. Fialowski on the cohomology $H^*(\mathfrak l,\mathbb Q)$.
Keywords: homology, cohomology, lamplighter group, pronilpotent completion, $\mathfrak {sl}_2$-module.
Mots-clés : Lie algebra of maximal class 
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D. V. Millionshchikov. Homology and Cohomology of the Lamplighter Lie Algebra. Trudy Matematicheskogo Instituta imeni V.A. Steklova, Toric Topology, Group Actions, Geometry, and Combinatorics. Part 2, Tome 318 (2022), pp. 166-176. http://geodesic.mathdoc.fr/item/TM_2022_318_a9/

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