C. Shah, AFFINE AND PROJECTIVE LINES OVER ONE-DIMENSIONAL SEMILOCAL DOMAINS, Proceedings of the American Mathematical Society, 124(3), 1996, pp. 697-705
We characterize those partially ordered sets that can occur as the spe
ctra of polynomial rings over one-dimensional semilocal (Noetherian) d
omains. We also determine the posets that can occur as projective line
s over one-dimensional semilocal domains.