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On the Total Monophonic Number of a Graph | ||
| Communications in Combinatorics and Optimization | ||
| مقاله 4، دوره 8، شماره 3، آذر 2023، صفحه 483-489 اصل مقاله (353.85 K) | ||
| نوع مقاله: Special Issue for ICGCO-2022 | ||
| شناسه دیجیتال (DOI): 10.22049/cco.2022.27731.1331 | ||
| نویسندگان | ||
| Subramanian Arumugam1؛ Santhakumaran A.P.2؛ Titus P.3؛ Ganesamoorthy K.* 4؛ Murugan M.5 | ||
| 1Director (n-CARDMATH) Kalasalingam University Anand Nagar, Krishnankoil-626 126 Tamil Nadu, India | ||
| 2Department of Mathematics Hindustan Institute of Technology and Science Chennai - 603 103, India | ||
| 3Department of Mathematics, University College of Engineering, Nagercoil | ||
| 4Department of Mathematics, Coimbatore Institute of Technology (Government Aided Autonomous Institution) Coimbatore - 641 014, India | ||
| 5Mathematics, Coimbatore Institute of Technology, Coimbatore - 14 | ||
| چکیده | ||
| Let G = (V,E) be a connected graph of order n. A path P in G which does not have a chord is called a monophonic path. A subset S of V is called a monophonic set if every vertex v in V lies in a x-y monophonic path where x, y 2 S. If further the induced subgraph G[S] has no isolated vertices, then S is called a total monophonic set. The total monophonic number mt(G) and the upper total monophonic number m+t (G) are respectively the minimum cardinality of a total monophonic set and the maximum cardinality of a minimal total monophonic set. In this paper we determine the value of these parameters for some classes of graphs and establish bounds for the same. We also prove the existence of graphs with prescribed values for mt(G) and m+t (G). | ||
| کلیدواژهها | ||
| total geodetic set؛ total monophonic set؛ total monophonic number؛ minimal total monophonic set؛ upper total monophonic number | ||
| مراجع | ||
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