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Graphs with arbitrary Ramsey number and connectivity

Abstract:
The Ramsey number r(G) of a graph G is the minimum number N such that any red-blue colouring of the edges of KN contains a monochromatic copy of G. Pavez-Signé, Piga and Sanhueza-Matamala proved that for any function n f(n) ≤ r(Kn), there is a sequence of connected graphs (Gn)n∈N with |V(Gn)| = n such that r(Gn) = Θ(f(n)) and conjectured that Gn can additionally have arbitrarily large connectivity. In this note we prove their conjecture.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.37236/12547

Authors

More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Mathematical Institute
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Mathematical Institute
Oxford college:
Merton College
Role:
Author
ORCID:
0000-0003-4489-5988


More from this funder
Funder identifier:
https://ror.org/0439y7842
Funding agency for:
Scott, A
Grant:
EP/X013642/1


Publisher:
Electronic Journal of Combinatorics
Journal:
The Electronic Journal of Combinatorics More from this journal
Volume:
31
Issue:
4
Article number:
P4.76
Publication date:
2024-12-27
Acceptance date:
2024-11-20
DOI:
EISSN:
1077-8926
ISSN:
1097-1440


Language:
English
Pubs id:
2081813
Local pid:
pubs:2081813
Deposit date:
2025-03-28
ARK identifier:

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