Existence of ACM curves realizing a given numerical semigroup of type t
Establish whether for every numerical semigroup T of Cohen–Macaulay type t > 1 there exists an arithmetically Cohen–Macaulay projective monomial curve C of type t whose associated numerical semigroup S_C equals T.
References
Open problem For a numerical semigroup $T$ of type $t > 1$, does there exist an arithmetically Cohen-Macaulay curve $C$ of type $t$ such that $S_{C} = T$?
— Proyective Cohen-Macaulay monomial curves and their affine charts
(2405.15634 - García-Marco et al., 24 May 2024) in Open problem, Section 6: Conclusions / Open questions