Temat: connective eccentric index - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Connective Eccentric Index of Circumcoronene Homologous Series of Benzenoid Hk
Autorzy:: Farahani, M. R.
Powiązania:: https://bibliotekanauki.pl/articles/411668.pdf
Data publikacji:: 2014
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: molecular graph
benzenoid
connective eccentric index
eccentric connectivity index
Opis:: Let G be a molecular graph, a topological index is a numeric quantity related to G which is invariant under graph automorphisms. The eccentric connectivity index ξ(G) is defined as [wzór] where [wzór] denote the degree of vertex v in G and the largest distance between v and any other vertex u of G. The connective eccentric index of graph G is defined as [wzór] In the present paper we compute the connective eccentric index of Circumcoronene Homologous Series of Benzenoid Hk (k ≥ 1).
Źródło:: International Letters of Chemistry, Physics and Astronomy; 2014, 13, 1; 71-76
2299-3843
Pojawia się w:: International Letters of Chemistry, Physics and Astronomy
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Connective Eccentric Index of an infinite family of linear polycene parallelogram benzenoid
Autorzy:: Farahani, M. R.
Powiązania:: https://bibliotekanauki.pl/articles/411891.pdf
Data publikacji:: 2014
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: molecular graphs
linear polycene parallelogram
benzenoid
eccentric connectivity index
connective eccentric index
Opis:: Let G=(V, E) be a graph, where V(G) is a non-empty set of vertices and E(G) is a set of edges. We defined dv denote the degree of vertex v∈V(G). The Eccentric Connectivity index ξ(G) and the Connective Eccentric index Cξ(G) of graph G are defined as ξ(G)= [wzór] and Cξ(G)=[wzór] where ε(v) is defined as the length of a maximal path connecting a vertex v to another vertex of G. In this present paper, we compute these Eccentric indices for an infinite family of linear polycene parallelogram benzenod by a new method.
Źródło:: International Letters of Chemistry, Physics and Astronomy; 2014, 18; 57-62
2299-3843
Pojawia się w:: International Letters of Chemistry, Physics and Astronomy
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Comparing Eccentricity-Based Graph Invariants
Autorzy:: Hua, Hongbo
Wang, Hongzhuan
Gutman, Ivan
Powiązania:: https://bibliotekanauki.pl/articles/31348117.pdf
Data publikacji:: 2020-11-01
Wydawca:: Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:: eccentricity (of vertex)
Zagreb eccentricity index
eccentric distance sum
connective eccentricity index
Opis:: The first and second Zagreb eccentricity indices (EM₁ and EM₂), the eccentric distance sum (EDS), and the connective eccentricity index (CEI) are all recently conceived eccentricity-based graph invariants, some of which found applications in chemistry. We prove that EDS ≥ EM₁ for any connected graph, whereas EDS > EM₂ for trees. Moreover, in the case of trees, EM₁ ≥ CEI, whereas EM₂ > CEI for trees with at least three vertices. In addition, we compare EDS with EM2, and compare EM₁, EM₂ with CEI for general connected graphs under some restricted conditions.
Źródło:: Discussiones Mathematicae Graph Theory; 2020, 40, 4; 1111-1125
2083-5892
Pojawia się w:: Discussiones Mathematicae Graph Theory
Dostawca treści:: Biblioteka Nauki

Artykuł

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