On Jacobian group of the $\Delta$-graph

Alexander Mednykh, Ilya Mednykh, Ivan Yudin

In the present paper we compute the Jacobian group of $\Delta$-graph $\Delta (n;k,l,m).$ The notion of $\Delta$-graph continues the list of families of $I$-, $Y$- and $H$-graphs well-known in t…