Non-Abelian Resonance: Product and Coproduct Formulas
We investigate the resonance varieties attached to a commutative differential graded algebra and to a representation of a Lie algebra, with emphasis on how these varieties behave under finite products and coproducts.
KeywordsResonance variety Differential graded algebra Lie algebra product Coproduct
This work was started while the two authors visited the Max Planck Institute for Mathematics in Bonn in April–May 2012. The work was pursued while the second author visited the Institute of Mathematics of the Romanian Academy in June 2012 and June 2013, and MPIM Bonn in September–October 2013. Thanks are due to both institutions for their hospitality, support, and excellent research atmosphere.
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