Семинар на 30.06.2022 г.


На 30 юни 2022 г. /четвъртък/, от 13:15 ч. в зала 300 на ИЯИЯЕ Juan Jose Villareal (Бат, Великобритания) ще изнесе доклад на тема:

"Logarithmic vertex algebras and Non local poisson vertex algebras".

In this talk I want to explain the notion of logarithmic vertex algebras. The motivation behind this notion is logarithmic CFT. In particular, logarithmic vertex algebras provided a rigorous algebraic formulation of quantum fields with logarithmic singularities in their operator product expansion. I will describe some examples in this talk. Finally, I will mention some results that are going to appear in a forthcoming paper. Non-local Poisson vertex algebras were introduced by Kac and De Sole motivated by the theory of integrable systems. We prove that the associated graded vector space of a filtered logarithmic vertex algebra is a non-local Poisson vertex algebra. We use this relation to obtain new examples of both logarithmic vertex algebras and non-local Poisson vertex algebras. This is a joint work with Bojko Bakalov.


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