id: 01965399 dt: j an: 01965399 au: Bertet, Karell; Gustedt, Jens; Morvan, Michel ti: Weak-order extensions of an order. so: Theor. Comput. Sci. 304, No. 1-3, 249-268 (2003). py: 2003 pu: Elsevier Science Publishers, Amsterdam la: EN cc: ut: Partial order; Algorithm; Weak-order; Extension of an order; Graph; Complexity ci: li: doi:10.1016/S0304-3975(03)00132-4 ab: Summary: At first we describe a digraph representing all the weak-order extensions of a partially ordered set and algorithms for generating them. Then we present a digraph representing all of the minimal weak-order extensions of a partially ordered set. This digraph also implies generation algorithms. Finally, we prove that the number of weak-order extensions of a partially ordered set is a comparability invariant, whereas the number of minimal weak-order extensions of a partially ordered set is not a comparability invariant. rv: