In this paper, a new molecular-structure descriptor, the general sum–connectivity co–index is considered, which generalizes the first Zagreb co–index and the general sum– connectivity index of graph theory. We mainly explore the lower and upper bounds in terms of the order and size for this new invariant. Additionally, the Nordhaus–Gaddum–type result is also represented.
SU, G., & XU, L. (2011). On the General Sum–Connectivity Co–Index of Graphs. Iranian Journal of Mathematical Chemistry, 2(Issue 1 (Special Issue on the Occasion of Mircea V. Diudea's Sixtieth Birthday)), 89-98. doi: 10.22052/ijmc.2011.5173
MLA
G. SU; L. XU. "On the General Sum–Connectivity Co–Index of Graphs". Iranian Journal of Mathematical Chemistry, 2, Issue 1 (Special Issue on the Occasion of Mircea V. Diudea's Sixtieth Birthday), 2011, 89-98. doi: 10.22052/ijmc.2011.5173
HARVARD
SU, G., XU, L. (2011). 'On the General Sum–Connectivity Co–Index of Graphs', Iranian Journal of Mathematical Chemistry, 2(Issue 1 (Special Issue on the Occasion of Mircea V. Diudea's Sixtieth Birthday)), pp. 89-98. doi: 10.22052/ijmc.2011.5173
VANCOUVER
SU, G., XU, L. On the General Sum–Connectivity Co–Index of Graphs. Iranian Journal of Mathematical Chemistry, 2011; 2(Issue 1 (Special Issue on the Occasion of Mircea V. Diudea's Sixtieth Birthday)): 89-98. doi: 10.22052/ijmc.2011.5173
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