On Jacobian group and complexity of the Y-graph

Y. S. Kwon, A. D. Mednykh, I. A. Mednykh

In the present paper we suggest a simple approach for counting Jacobian group of the $Y$-graph $Y(n;k,l,m).$ In the case $Y(n;1,1,1)$ the structure of the Jacobian group will…