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Pre-Calabi-Yau structures and moduli of representations

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arxiv 1802.05398 v4 pith:O2IBSHAJ submitted 2018-02-15 math.AG math.KTmath.RTmath.SG

classification math.AGmath.KTmath.RTmath.SG
keywords structuremodulipre-calabi-yauderivedformsinducesrepresentationsshifted
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abstract

We establish a system of formal noncommutative calculus for differential forms and polyvector fields, which forms the foundations for the study of pre-Calabi-Yau categories. Using an explicit trace map, we show that any $n$-Calabi-Yau structure on a non-positively graded dg algebra $A$ induces a $(2-n)$-shifted symplectic structure on its derived moduli stack of representations; while any $n$-pre-Calabi-Yau structure on $A$ induces a $(2-n)$-shifted Poisson structure on this derived moduli stack.

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  1. Deformation and quantization of the Loday-Quillen-Tsygan isomorphism for Calabi-Yau categories

    math.RA 2025-05 conditional novelty 6.0 of 10

    For Koszul Calabi-Yau algebras, the Loday-Quillen-Tsygan isomorphism deforms to a co-Poisson bialgebra isomorphism and quantizes to a Hopf algebra isomorphism, induced from the Lie bialgebra on the cyclic homology of ...

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