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math.CO2020★ 2 cited
A characterization of Sturmian sequences by indistinguishable asymptotic pairs
Sebastián Barbieri, Sébastien Labbé, Štěpán Starosta
We give a new characterization of biinfinite Sturmian sequences in terms of indistinguishable asymptotic pairs. Two asymptotic sequences on a full -shift are indistingu…
cs.FL2020
Binary intersection formalized
Štěpán Holub, Štěpán Starosta
We provide a reformulation and a formalization of the classical result by Juhani Karhumäki characterizing intersections of two languages of the form . We u…