M.Phil / MS
Permanent URI for this collectionhttps://repository.cuilahore.edu.pk/handle/123456789/52
This collection archives the complete set of theses produced by students of the COMSATS University Islamabad, Lahore Campus.
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Item Zagreb Connection Indices for Some Benzenoid Systems(Library Information Services COMSATS University Lahore Campus, 2024-03-17) Kiramat Ali; FA22-RMT-049; Dr. Kashif Ali; LHR TP 9386A benzenoid system is a molecular structure discovered in organic chemistry that compris esa planar, cyclic arrangement of carbon atoms connected by alternating single and double bonds. Polycyclic hydrocarbons, heterocyclic compounds, and organic molecules with fused rings can all contain benzenoid system. A benzenoid system is a finite connected subgraph of an infinite hexagonal lattice that has neither non-hexagonal internal faces nor cut vertices. The ultimate goal is to derive mathematical formulas for first, second and modified Zagreb connection indices for the line graph of k-subdivided of six benzenoid systems(three pericondensed and three catacondensed systems). In the end, we compute graphical and numerical comparisons between the first, second, and modify Zagreb con nection indices of these systemsItem Connection Numbers of Some Graphs(Library Information Services COMSATS University Lahore Campus, 2024-03-13) Muhammad Usama Arshad; FA22-RMT-041; Dr. Kashif Ali; LHR TP 9363In this study, we apply different graph operations to find the dual graphs of different chem ical structures including honey comb graph, Boron tube graph , Boron nano tube graph and Silicate network. Then we will find the connection numbers of these mentioned graphs and after that we will find 1st, 2nd and modified ZCI (Zagreb connection indices).