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math.CO2021
Sidon-Ramsey and -Ramsey numbers
Manuel A. Espinosa-García, Amanda Montejano, Edgardo Roldán-Pensado +1
For a given positive integer , the Sidon-Ramsey number $\SR(k)$ is defined as the minimum value of such that, in every partition of the set into parts, there ex…
cs.CG2021
Dissecting the square into seven or nine congruent parts
Gerardo L. Maldonado, Edgardo Roldán-Pensado
We give a computer-based proof of the following fact: If a square is divided into seven or nine convex polygons, congruent among themselves, then the tiles are rectangles.