A. Ionov

collaborators

2 papers

math.AG2020

Hochschild cohomology of Fermat type polynomials with non-abelian symmetries

Alexey Basalaev, Andrei Ionov

For a polynomial $f = x_{1}^{n} + \dots + x_{N}^{n}$ let $G_{f}$ be the non--abelian maximal group of symmetries of $f$ . This is a group generated by all $g \in GL (N, C)$ , r…

math.AT2015

Supersymmetric Semisimple Cardy-Frobenius Algebras

A. Ionov

Cardy-Frobenius algebra is the algebraic structure on the space of states in open-closed topological field theory. We prove that every semisimple super Cardy-Frobenius algebras is…