Degree;
Lower bound;
Multiplicative Zagreb indices;
Multiplicative sum Zagreb index;
Graph operations;
MOLECULAR DESCRIPTORS;
TREES;
SUM;
1ST;
NUMBER;
D O I:
暂无
中图分类号:
O1 [数学];
学科分类号:
0701 ;
070101 ;
摘要:
The first and second multiplicative Zagreb indices of a simple graph G are defined as: Pi(1)(G) = Pi(u is an element of v(G)) d(G)(u)(2) and Pi(2)(G) = Pi(uv is an element of E(G)) d(G)(U)d(G)(V), where d(G)(u) denotes the degree of the vertex u of G. In this paper, we present some strict lower bounds on the first and second multiplicative Zagreb indices of several graph operations in terms of the first and second multiplicative Zagreb indices and multiplicative sum Zagreb index of their components.
机构:
Ferdowsi Univ Mashhad, Dept Pure Math, Int Campus,POB 91779-48974, Mashhad, Razavi Khorasan, IranFerdowsi Univ Mashhad, Dept Pure Math, Int Campus,POB 91779-48974, Mashhad, Razavi Khorasan, Iran
Aghel, Majid
Erfanian, Ahmad
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机构:
Ferdowsi Univ Mashhad, Dept Pure Math, Int Campus,POB 91779-48974, Mashhad, Razavi Khorasan, Iran
Ferdowsi Univ Mashhad, Ctr Excellence Anal Algebra Struct, Mashhad, Razavi Khorasan, IranFerdowsi Univ Mashhad, Dept Pure Math, Int Campus,POB 91779-48974, Mashhad, Razavi Khorasan, Iran
Erfanian, Ahmad
Dehghan-Zadeh, Tayebeh
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h-index: 0
机构:
Univ Kashan, Fac Math Sci, Dept Pure Math, POB 87317-53153, Kashan, IranFerdowsi Univ Mashhad, Dept Pure Math, Int Campus,POB 91779-48974, Mashhad, Razavi Khorasan, Iran
机构:
King Fahd Univ Petr & Minerals, Dept Math & Stat, Dhahran 31261, Saudi ArabiaKing Fahd Univ Petr & Minerals, Dept Math & Stat, Dhahran 31261, Saudi Arabia
Alfuraidan, Monther R.
Balachandran, Selvaraj
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h-index: 0
机构:
Univ Free State, Dept Math & Appl Math, POB 339, ZA-9300 Bloemfontein, South Africa
SASTRA Deemed Univ, Dept Math, Sch Arts Sci & Humanities, Thanjavur, IndiaKing Fahd Univ Petr & Minerals, Dept Math & Stat, Dhahran 31261, Saudi Arabia
Balachandran, Selvaraj
Vetrik, Tomas
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h-index: 0
机构:
Univ Free State, Dept Math & Appl Math, POB 339, ZA-9300 Bloemfontein, South AfricaKing Fahd Univ Petr & Minerals, Dept Math & Stat, Dhahran 31261, Saudi Arabia