Total Vertex Irregularity Strength of the Disjoint Union of Sun Graphs

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<g transform="matrix(.012,0,0,-.012,58.638,15.188)"><path d="M137 343l67 33q37 17 63 17q79 0 129.5 -53t50.5 -131q0 -92 -58 -156.5t-147 -64.5t-147 68t-58 182q0 63 17 119t43 95.5t61.5 72t69 52t67.5 31.5q62 22 128 33l6 -32q-56 -11 -108 -35q-149 -71 -184 -231zM227 337q-47 0 -95 -27q-6 -23 -6 -70q0 -93 36 -155.5
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International Journal of Combinatorics

fig3

Figure 3

Figure 3: Total Vertex Irregularity Strength of the Disjoint Union of Sun Graphs 