3 papers
math.RT2026
Graded Lie superalgebras from embedding tensors
Sylvain Lavau, Jakob Palmkvist
We show how various constructions of -graded Lie superalgebras are related to each other. These Lie superalgebras have a Lie algebra as the subalgebra at…
math.DG2024
The modular class of a singular foliation
Sylvain Lavau
The modular class of a regular foliation is a cohomological obstruction to the existence of a volume form transverse to the leaves which is invariant under the flow of the vector f…
math.DG2024
Atiyah classes of Lie algebroid homotopy modules
Panagiotis Batakidis, Sylvain Lavau
For a Lie algebroid pair we study cocycles constructed from the extension to of the higher connection forms of a representation up to homotopy of the L…