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math.MG2022
Lines in quasi-metric spaces with four points
Gabriela Araujo-Pardo, Martín Matamala, José Zamora
A set of n non-collinear points in the Euclidean plane defines at least n different lines. Chen and Chvátal in 2008 conjectured that the same results is true in metric spaces for a…
math.CO2022★ 2 cited
On the harmonious chromatic number of graphs
Gabriela Araujo-Pardo, Juan José Montellano-Ballesteros, Mika Olsen +1
The harmonious chromatic number of a graph is the minimum number of colors that can be assigned to the vertices of in a proper way such that any two distinct edges have dif…