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Discrete Mathematics Letters
Article . 2023 . Peer-reviewed
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Discrete Mathematics Letters
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Maximum Atom-Bond Sum-Connectivity Index of n-Order Trees With Fixed Number of Leaves

الحد الأقصى لمؤشر مجموع اتصال رابطة الذرة للأشجار غير المرتبة مع عدد ثابت من الأوراق
Authors: Sadia Noureen; Akbar Ali;

Maximum Atom-Bond Sum-Connectivity Index of n-Order Trees With Fixed Number of Leaves

Abstract

Sea G un gráfico. Para una arista e de G, denota por de el número de aristas adyacentes a e.El índice de conectividad de suma de enlaces atómicos (ABS) de G se define como ABS(G) = e∈E(G) 1 -2(de + 2) -1 .Un gráfico de orden n se conoce como un gráfico de orden n. El problema de determinar los árboles que poseen el índice ABS mínimo entre todos los árboles de orden n con un número fijo de hojas ha sido atacado recientemente en dos preimpresiones de forma independiente. Este artículo proporciona una solución completa a la versión máxima del problema mencionado anteriormente.

Soit G un graphe.Pour un bord e de G, désigner par de le nombre de bords adjacents à e.L' indice de somme des liaisons atomiques (ABS) de G est défini comme ABS(G) = e∈E(G) 1 -2(de + 2) -1 .Un graphe d'ordre n est connu comme un graphe d'ordre n.Le problème de la détermination des arbres possédant l'indice ABS minimum parmi tous les arbres d'ordre n avec un nombre fixe de feuilles a récemment été attaqué dans deux préimpressions indépendamment. Cet article fournit une solution complète à la version maximale du problème susmentionné.

Let G be a graph.For an edge e of G, denote by de the number of edges adjacent to e.The atom-bond sum-connectivity (ABS) index of G is defined as ABS(G) = e∈E(G) 1 -2(de + 2) -1 .A graph of order n is known as an n-order graph.The problem of determining trees possessing the minimum ABS index among all n-order trees with fixed number of leaves has recently been attacked in two preprints independently.This article provides a complete solution to the maximal version of the aforementioned problem.

دع G تكون رسمًا بيانيًا. بالنسبة لحافة e من G، قم بالإشارة بواسطة de إلى عدد الحواف المجاورة لـ e. يتم تعريف مؤشر مجموع رابطة الذرة (ABS) لـ G على أنه ABS(G) = e E(G) 1-2(de + 2) -1. يُعرف الرسم البياني للطلب n باسم الرسم البياني n - order. تم مؤخرًا مهاجمة مشكلة تحديد الأشجار التي تمتلك الحد الأدنى من مؤشر ABS بين جميع الأشجار n - order ذات العدد الثابت من الأوراق في طبعتين مسبقتين بشكل مستقل. توفر هذه المقالة حلاً كاملاً للنسخة القصوى من المشكلة المذكورة أعلاه.

Related Organizations
Keywords

Economics, Materials Science, Eccentric Connectivity Index, Vertex degrees, Trees, atom-bond sum-connectivity index, QA1-939, FOS: Mathematics, Materials Chemistry, topological index, Atom (system on chip), Embedded system, Graphene: Properties, Synthesis, and Applications, Spectroscopy, Order (exchange), Extremal problems in graph theory, Chemical graph theory, leaf, pendent vertex, Graph Spectra and Topological Indices, Molecular structure (graph-theoretic methods, methods of differential topology, etc.), Computer science, tree, World Wide Web, Chemistry, Graphical indices (Wiener index, Zagreb index, Randić index, etc.), Combinatorics, Physical Sciences, Fluorescent Chemosensors for Ion Detection and Bioimaging, Geometry and Topology, Topological index, Mathematics, Finance, Index (typography)

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
17
Top 10%
Top 10%
Top 10%
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