In this paper we give a characterization of unmixed tripartite graphs under certain conditions which is a generalization of a result of Villarreal on bipartite graphs. For bipartite graphs two different characterizations were given by Ravindra and Villarreal. We show that these two characterizations imply each other.
Haghighi, H. (2014). A generalization of Villarreal's result for unmixed tripartite graphs. Bulletin of the Iranian Mathematical Society, 40(6), 1505-1514.
MLA
H. Haghighi. "A generalization of Villarreal's result for unmixed tripartite graphs". Bulletin of the Iranian Mathematical Society, 40, 6, 2014, 1505-1514.
HARVARD
Haghighi, H. (2014). 'A generalization of Villarreal's result for unmixed tripartite graphs', Bulletin of the Iranian Mathematical Society, 40(6), pp. 1505-1514.
VANCOUVER
Haghighi, H. A generalization of Villarreal's result for unmixed tripartite graphs. Bulletin of the Iranian Mathematical Society, 2014; 40(6): 1505-1514.