<math xmlns="http://www.w3.org/1998/Math/MathML" id="M1"> <msub> <mrow> <mi>M</mi> </mrow> <mrow> <mi>v</mi> <mi>e</mi> </mrow> </msub> </math>—Polynomial of Cog-Special Graphs and Types of Fan Graphs
نویسندگان
چکیده
The study of topological indices in graph theory is one the more important topics, as scientific development that occurred previous century had an impact by linking it to many chemical and physical properties such boiling point melting point. So, our interest this paper “generalized indices’ network” for some graphs have somewhat strange structure, so called cog-graphs special “molecular network”, finding their polynomials based on vertex − edge degree then deriving them with respect id="M3"> x , id="M4"> y id="M5"> respectively, after substitution id="M6"> = 1 these are cog-path, cog-cycle, cog-star, cog-wheel, cog-fan, cog-hand fan graphs; importance types fact vertices four, which corresponds stability compounds. These first second Zagreb, reduced hyper forgotten, Albertson, sigma indices.
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ژورنال
عنوان ژورنال: International Journal of Mathematics and Mathematical Sciences
سال: 2023
ISSN: ['1687-0425', '0161-1712']
DOI: https://doi.org/10.1155/2023/6636380