ZAGREB INDICES OF A NEW SUM OF GRAPHS
نویسندگان
چکیده
The first and second Zagreb indices, since its inception have been subjected to an extensive research in the physio- chemical analysis of compounds. In [6] Hanyuan Deng et.al computed indices four new operations on a graph defined by M. Eliasi, B. Taeri [4]. Motivated from this we define operation graphs compute resultant graph. We illustrate results with some examples.
منابع مشابه
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The first and second Zagreb indices of a graph are equal, respectively, to the sum of squares of the vertex degrees, and the sum of the products of the degrees of pairs of adjacent vertices. We now consider analogous graph invariants, based on the second degrees of vertices (number of their second neighbors), called leap Zagreb indices. A number of their basic properties is established.
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ژورنال
عنوان ژورنال: Ural mathematical journal
سال: 2023
ISSN: ['2414-3952']
DOI: https://doi.org/10.15826/umj.2023.1.001