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math.CO2019
An adaptive upper bound on the Ramsey numbers
Shalom Eliahou
Since 2002, the best known upper bound on the Ramsey numbers R n (3) = R(3,. .. , 3) is R n (3) n!(e -- 1/6) + 1 for all n 4. It is based on the current estimate R 4 (3…
math.CO2019★ 15 cited
A graph-theoretic approach to Wilf's conjecture
Shalom Eliahou
Let S N be a numerical semigroup with multiplicity m = min(S \ {0}) and conductor c = max(N \ S) + 1. Let P be the set of primitive elements of S, and let L be the set…
math.CO2019
Some Results On The Flynn-Poonen-Schaefer Conjecture
Shalom Eliahou, Youssef Fares
For , consider the quadratic polynomial map . Flynn, Poonen and Schaefer conjectured in 1997 that no rational cycle of under iteration has len…