Central extensions of the algebra of formal pseudo-differential symbols via Hochschild (co)homology and quadratic symplectic Lie algebras
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DOI: 10.1016/j.jpaa.2017.08.017
Abstract: Abstract We describe the space of central extensions of the associative algebra Ψ n of formal pseudo-differential symbols in n ≥ 1 independent variables using Hochschild (co)homology groups: we prove that the first Hochschild (co)homology… read more here.
Keywords: central extensions; formal pseudo; pseudo differential; hochschild homology ... See more keywords