Generalised Lyndon-Schützenberger Equations
Generalised Lyndon-Schützenberger Equations
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广义 Lyndon-Schützenberger 方程
DOI:
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发表时间:
2014
期刊:
影响因子:
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通讯作者:
Shinnosuke Seki
中科院分区:
文献类型:
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作者:
F. Manea;M. Müller;Dirk Nowotka;Shinnosuke Seki
We fully characterise the solutions of the generalised Lyndon-Schutzenberger word equations u 1 ⋯ u l = v 1 ⋯ v m w 1 ⋯ w n , where u i ∈ {u, θ(u)} for all 1 ≤ i ≤ l, v j ∈ {v, θ(v)} for all 1 ≤ j ≤ m, w k ∈ {w, θ(w)} for all 1 ≤ k ≤ n, and θ is an antimorphic involution. More precisely, we show for which l, m, and n such an equation has only θ-periodic solutions, i.e., u,v,w ∈ {t,θ(t)}* for some word t, closing an open problem by Czeizler et al. (2009).