Unitality via H-equivalence in the NP1 category
Determine whether every NP1-digital H-space (X, e, μ), where μ: X × X → X is NP1-continuous and μ ∘ (id_X, c_e) is NP1-homotopic to id_X and μ ∘ (c_e, id_X) is NP1-homotopic to id_X, is H-equivalent (via continuous pointed maps that are homotopy inverses and compatible with multiplication up to homotopy) to a unital NP1-digital H-space (Y, e_Y, μ_Y) satisfying μ_Y ∘ (id_Y, c_{e_Y}) = id_Y = μ_Y ∘ (c_{e_Y}, id_Y).
References
Our classification of NP_2-digital H-spaces in Theorem \ref{np2classification} will imply that any NP_2-digital H-space is indeed H-equivalent to a unital H-space, but we are left with the following open question for the NP_1 category: Is every NP_1-digital H-space H-equivalent to a unital H-space?
— On digital H-spaces
(2408.10087 - Johnson et al., 19 Aug 2024) in Section 4 (Irreducible digital H-spaces)