Hochschild cohomology and orbifold Jacobian algebras associated to invertible polynomials

Alexey Basalaev, Atsushi Takahashi

Let $f$ be an invertible polynomial and $G$ a group of diagonal symmetries of $f$. This note shows that the orbifold Jacobian algebra $\mathrm{Jac}(f,G)$ of $(f,G)$ defined by the…