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arXiv · 2002.11494

The undecidability of joint embedding for 3-dimensional permutation classes

Samuel Braunfeld
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Abstract

As a step towards resolving a question of Ru\v{s}kuc on the decidability of joint embedding for hereditary classes of permutations, which may be viewed as structures in a language of 2 linear orders, we show the corresponding problem is undecidable for hereditary classes of structures in a language of 3 linear orders.

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Samuel Braunfeld. 2020-02-25. The undecidability of joint embedding for 3-dimensional permutation classes. https://doi.org/10.46298/dmtcs.6165

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