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19.104 (2018)

Open

Is there an algorithm which decides whether a given subgroup of $F$ is inert?

An algorithm to decide whether a given $H$ is compressed is known.

(For the definitions, see 19.102)

Contributor: E. Ventura

Progress

*Yes, there is (A. Jaikin-Zapirain, Preprint, 2024, https://arxiv.org/pdf/2403.09515).

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