20 citations · 133 across the 31 of their papers we have counts for
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math.DS2019
On Sturmian substitutions closed under derivation
Edita Pelantová, Štěpán Starosta
Occurrences of a factor in an infinite uniformly recurrent sequence can be encoded by an infinite sequence over a finite alphabet. This sequence is usually denoted ${…
math.CO2019★ 1 cited
On substitutions closed under derivation: examples
Václav Košík, Štěpán Starosta
We study infinite words fixed by a morphism and their derived words. A derived word is a coding of return words to a factor. We exhibit two examples of sets of morphisms which are…
math.NT2019★ 4 cited
Bounds on the period of the continued fraction after a Möbius transformation
Hanka Řada, Štěpán Starosta
We study Möbius transformations (also known as linear fractional transformations) of quadratic numbers. We construct explicit upper and lower bounds on the period of the continued…