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Given two graphs H and F, the maximum possible number of copies of H in an F-free graph on n vertices is denoted by ex(n,H,F). Let ℓ⋅F denote ℓ vertex disjoint copies of F. Győri and Li (2012) obtained results on ex(n,C3,C2k+1), which was further improved by Alon and Shikhelman (2016). In this paper, we determine the exact value of ex(n,C3,ℓ⋅C2k+1) and its extremal graph for all ℓ≥2 and large n. © 2024 Elsevier B.V.
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Discrete Mathematics
ISSN: 0012-365X
Year: 2024
Issue: 7
Volume: 347
0 . 7 0 0
JCR@2023
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