The Minimum Merrifield–Simmons Index of Unicyclic Graphs with Diameter at Most Four
The Merrifield–Simmons index iG of a graph G is defined as the number of subsets of the vertex set, in which any two vertices are nonadjacent, i.e., the number of independent vertex sets of G. In this paper, we determine the minimum Merrifield–Simmons index of unicyclic graphs with n vertices and di...
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2021-01-01
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Series: | Journal of Mathematics |
Online Access: | http://dx.doi.org/10.1155/2021/6680242 |
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author | Kun Zhao Shangzhao Li Shaojun Dai |
author_facet | Kun Zhao Shangzhao Li Shaojun Dai |
author_sort | Kun Zhao |
collection | DOAJ |
description | The Merrifield–Simmons index iG of a graph G is defined as the number of subsets of the vertex set, in which any two vertices are nonadjacent, i.e., the number of independent vertex sets of G. In this paper, we determine the minimum Merrifield–Simmons index of unicyclic graphs with n vertices and diameter at most four. |
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id | doaj-art-309b3ce0514c44d48cfad52d54c6f597 |
institution | Kabale University |
issn | 2314-4629 2314-4785 |
language | English |
publishDate | 2021-01-01 |
publisher | Wiley |
record_format | Article |
series | Journal of Mathematics |
spelling | doaj-art-309b3ce0514c44d48cfad52d54c6f5972025-02-03T01:28:26ZengWileyJournal of Mathematics2314-46292314-47852021-01-01202110.1155/2021/66802426680242The Minimum Merrifield–Simmons Index of Unicyclic Graphs with Diameter at Most FourKun Zhao0Shangzhao Li1Shaojun Dai2Department of Mathematics, Jiamusi University, Jiamusi, Heilongjiang 154007, ChinaSchool of Mathematics and Statistics, Changshu Institute of Technology, Changshu, Jiangsu 215500, ChinaSchool of Mathematical Sciences, Tiangong University, Tianjin 300387, ChinaThe Merrifield–Simmons index iG of a graph G is defined as the number of subsets of the vertex set, in which any two vertices are nonadjacent, i.e., the number of independent vertex sets of G. In this paper, we determine the minimum Merrifield–Simmons index of unicyclic graphs with n vertices and diameter at most four.http://dx.doi.org/10.1155/2021/6680242 |
spellingShingle | Kun Zhao Shangzhao Li Shaojun Dai The Minimum Merrifield–Simmons Index of Unicyclic Graphs with Diameter at Most Four Journal of Mathematics |
title | The Minimum Merrifield–Simmons Index of Unicyclic Graphs with Diameter at Most Four |
title_full | The Minimum Merrifield–Simmons Index of Unicyclic Graphs with Diameter at Most Four |
title_fullStr | The Minimum Merrifield–Simmons Index of Unicyclic Graphs with Diameter at Most Four |
title_full_unstemmed | The Minimum Merrifield–Simmons Index of Unicyclic Graphs with Diameter at Most Four |
title_short | The Minimum Merrifield–Simmons Index of Unicyclic Graphs with Diameter at Most Four |
title_sort | minimum merrifield simmons index of unicyclic graphs with diameter at most four |
url | http://dx.doi.org/10.1155/2021/6680242 |
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