Fundamental groups of log Calabi-Yau surfaces

Cécile Gachet, Zhining Liu, Joaquín Moraga

In this article, we study the orbifold fundamental group ${\pi }_1^{\mathrm{orb}}(X,\Delta )$ of a Calabi--Yau pair $(X,\Delta )$ with log canonical singularities. We conjecture that the orbifold fundam…