Collapsibility and homological properties of $\mathfrak{I}$-contractible transformations

Jesus F. Espinoza, Martín-Eduardo Frías-Armenta, Héctor A. Hernández

The family of $\mathfrak{I}$-contractible graphs and contractible transformations was defined by A. Ivashchenko in the mid-90's. In this paper we study the collapsibility and homol…