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Van der Waerden's Theorem and Avoidability in Words
2011
Integers
AbstractIndependently, Pirillo and Varricchio, Halbeisen and Hungerbühler and Freedman considered the following problem, open since 1992: Does there exist an infinite word
doi:10.1515/integ.2011.007
fatcat:xvk5v3hkzzhjfhcuixmoipovtm