The qq-analog of the Markoff injectivity conjecture over balanced sequences

About 5 years old · traced to

Let B=s∈0,1Z:s is balanced\mathcal{B}=\\{s\in\\{\mathtt{0},\mathtt{1}\\}^{\mathbb{Z}}:s\text{ is balanced}\\} be the set of all balanced bi-infinite binary sequences, and let

L(B)=⋃s∈BL(s)\mathcal{L}(\mathcal{B})=\bigcup_{s\in\mathcal{B}}\mathcal{L}(s)

be their language of finite factors. Let μq\mu_q be the qq-analog of the map assigning to a finite word ww the polynomial μq(w)12∈Z[q]\mu_q(w)_{12}\in\mathbb{Z}[q]. The qq-analog of the Markoff injectivity conjecture over balanced sequences. The map w↦μq(w)12w\mapsto\mu_q(w)_{12} from 0,1∗\\{\mathtt{0},\mathtt{1}\\}^* to Z[q]\mathbb{Z}[q] is injective over L(B)\mathcal{L}(\mathcal{B}). This extends the qq-analog from Christoffel words to the language of all balanced sequences, including periodic and Sturmian sequences; the supplied text gives no resolution.

References

Primary source

Sébastien Labbé and Mélodie Lapointe, “The q-analog of the Markoff injectivity conjecture over the language of a balanced sequence”, arXiv:2106.15886 (2021).

Progress summary

Never refreshed

Nothing recorded yet. Refresh searches the literature and the public web for attempts on this problem, and writes the first summary here.

Solutions 0

No solutions have been posted yet.