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СЕМИНАРЫ |
Семинар отдела алгебры и отдела алгебраической геометрии (семинар И. Р. Шафаревича)
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The string-necklace Lie algebra of a relative Calabi-Yau structure Ch. Brav |
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Аннотация: We review the notion of relative Calabi-Yau structure on a dg functor (a non-commutative analogue of an oriented manifold with boundary introduced in joint work with Toby Dyckerhoff), explain how the Lie algebra of its automorphism group is a chain-level generalisation of the string Lie algebra of Chas-Sullivan and the necklace Lie algebra of Kontsevich, and discuss some examples and applications (part of joint work Nick Rozenblyum). Язык доклада: английский |