Jurnal Eurekamatika
Vol 11, No 2 (2023): Jurnal Eurekamatika

Nilai Minimal Span Pelabelan L(3,1) pada Graf Supercycle Sc(n,r)

Fanny Febryani (Universitas Pendidikan Indonesia)
Kartika Yulianti (Universitas Pendidikan Indonesia)
Yaya Sukjaya Kusumah (Universitas Pendidikan Indonesia)
Utari Wijayanti (Universitas Pendidikan Indonesia)



Article Info

Publish Date
01 Dec 2023

Abstract

An labeling of a graph  is a function f from the set of vertex V(G) to the set of positive integers for any two vertices u, v where label difference |f(u)-f(v)|≥3 for distance d(u,v)=1 and label difference |f(u)-f(v)|≥1 for distance d(u,v)=2. In this study, the smallest positive integer λ where the maximum label used on L(3,1)-labeling for supercycle graph Sc(n,r) was formulated. The supercycle graph Sc(n,r) is the result of combining two special graphs, namely cycle graph  Cn and Hanoi graph Hr. To determine the formula for the minimum span value of labeling on supercycle graph, a pattern detection method is used, which is labeling several supercycle graph with certain n and r values, then we generalized. We obtained that λ(Sc(n,1))=6 if n= 1. Furthermore, λ(Sc(n,1))=7 if n1 and even; λ(Sc(n,1))=8 if n1 and odd. In addition, λ(Sc(n,r))=8, for r1.Keywords: L(3,1)-Labeling, Supercycle Graphs. AbstrakPelabelan L(3,1) didefinisikan sebagai pemetaan dari himpunan titik pada graf G ke himpunan bilangan bulat positif dimana untuk setiap dua titik u,v jika d(u,v)=1 berlaku |f(u)-f(v)|≥3 dan jika d(u,v)=2 berlaku |f(u)-f(v)|≥1. Pada penelitian ini dirumuskan nilai minimal rentang (span) pelabelan L(3,1) untuk graf supercycle Sc(n,r), yang dinotasikan dengan λ(Sc(n,r)). Graf supercycle Sc(n,r) merupakan hasil dari penggabungan dua buah graf khusus, yaitu graf cycle Cn  dan graf Hanoi Hr.  Proses penentuan nilai minimal span dari pelabelan L(3,1) pada graf supercycle, digunakan metode pendeteksian pola, yaitu dilakukan pelabelan pada beberapa graf supercycle Sc(n,r) dengan nilai n dan r tertentu, kemudian digeneralisasi secara induksi. Hasil penelitian ini diperoleh nilai  λ(Sc(n,1))=6, jika n=1. Kemudian, λ(Sc(n,1))=7, jika n1 dan n genap, λ(Sc(n,1))=8, jika n1 dan n ganjil. Selanjutnya, λ(Sc(n,r))=8 untuk r1. 

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Journal Info

Abbrev

JEM

Publisher

Subject

Computer Science & IT Industrial & Manufacturing Engineering Mathematics

Description

Jurnal EurekaMatika (e-ISSN: 2528-4231, p-ISSN: 2776-480X) was first published annually on December 2013, and then since 2017 has been published twice a year, on May and November. JEM is a peer-reviewed Mathematics journal with its scope covers Algebra, Analysis, Statistics, and Applied Mathematics. ...