Title Projective Dimension and Betti Number of Some Graphs Type of Research Article Keywords Projective dimension, Betti number, graph Abstract Let G be a graph. Then (G)i denotes a graph such that to every vertex addes i pendant edges. In this paper, we study the projective dimension and Betti number of some ..., graph such as (Sn)i, (Km,n)i, Researchers Abass Alilou (First Researcher)، jafar amjadi (Second Researcher)، naser Vaez Moosavi (Third Researcher)، saeed Mohammadikhah (Fourth Researcher)