Characterization of graphs $G$ where $G\in {\mathrm{obs}}^{\ast }(H)$ for some graph $H$

Zahra Rahimi, M. H. Shirdareh Haghighi, Asma Namazi

A full-homomorphism from a graph $G$ to a graph $H$ is a function on vertex sets that preserves adjacency and non-adjacency of vertices. A graph $G$ is called a minimal $H$-obstruc…