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math.CO2026
Robinson spaces and their representation in low-dimensional metric spaces
Francisco Arrepol, Mauricio Soto-Gomez, Christopher Thraves Caro
Robinson spaces are structures equipped with a total order that encodes comparative dissimilarity relationships. We study the problem of representing Robinson dissimilarity spaces…
math.CO2018
The Sitting Closer to Friends than Enemies Problem in the Circumference
Felipe Benítez, Julio Aracena, Christopher Thraves Caro
The Sitting Closer to Friends than Enemies (SCFE) problem is to find an embedding in a metric space for the vertices of a given signed graph so that, for every pair of incident edg…