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Bispecial factors in circular non-pushy D0L languages

Karel Klouda - No affiliation found

2012/08/03 Full-length article DOI: 10.1016/j.tcs.2012.05.007 Journal: Theoretical Computer Science

Abstract:

AbstractWe study bispecial factors in fixed points of morphisms. In particular, we propose a simple method of finding all bispecial words of non-pushy circular D0L-systems. This method can be formulated as an algorithm. Moreover, we prove that non-pushy circular D0L-systems are exactly those with finite critical exponents.