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The potential-Ramsey numbers rpot(Cn,Kt−k) and rpot(Pn,Kt−k)

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  • Zhang, Liang
  • Yin, Jianhua

Abstract

A nonincreasing sequence ρ=(ρ1,…,ρn) of nonnegative integers is a graphic sequence if it is realizable by a simple graph G on n vertices. In this case, G is referred to as a realization of ρ. Given two graphs G1 and G2, Busch et al. introduced the potential-Ramsey number of G1 and G2, denoted rpot(G1,G2), is the smallest nonnegative integer m such that for every m-term graphic sequence ρ, there is a realization G of ρ with G1⊆G or with G2⊆G¯, where G¯ is the complement of G. For t≥2 and 0≤k≤⌊t2⌋, let Kt−k be the graph obtained from Kt by deleting k independent edges. Busch et al. determined rpot(Cn,Kt−k) and rpot(Pn,Kt−k) for k=0. Du and Yin determined rpot(Cn,Kt−k) and rpot(Pn,Kt−k) for k=1. In this paper, we further determine rpot(Cn,Kt−k) and rpot(Pn,Kt−k) for 2≤k≤⌊t2⌋.

Suggested Citation

  • Zhang, Liang & Yin, Jianhua, 2023. "The potential-Ramsey numbers rpot(Cn,Kt−k) and rpot(Pn,Kt−k)," Applied Mathematics and Computation, Elsevier, vol. 451(C).
  • Handle: RePEc:eee:apmaco:v:451:y:2023:i:c:s0096300323002047
    DOI: 10.1016/j.amc.2023.128035
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    Keywords

    Degree sequence; Potential-Ramsey number;

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