For a simple graph G with the vertex set V and the edge set E, a labeling\ud
is called a vertex irregular total k-labeling of\ud
G, if for any two different vertices x and y in V, we have\ud
where\ud
The total vertex irregularity\ud
strength of G, denoted by tvs(G), is the smallest positive integer k for\ud
which G has a vertex irregular total k-labeling. In this paper, we determine\ud
the total vertex irregularity strength of an amalgamation of stars
