On Condition (PW P)w for S-posets

On Condition (PW P)w for S-posets

Golchin and Rezaei (Commun Algebra 2009; 37: 1995 2007) introduced the weak version of Condition (PW P) for S -posets, called Condition (PW P)w . In this paper, we continue to study this condition. We first present a necessary and sufficient condition under which the S -poset A(I) satisfies Condition (PW P)w . Furthermore, we characterize pomonoids S over which all cyclic (Rees factor) S -posets satisfy Condition (PW P)w , and pomonoids S over which all Rees factor S -posets satisfying Condition (PW P)w have a certain property. Finally, we consider direct products of S -posets satisfying Condition (PW P)w .

___

  • Bulman-Fleming S, Gutermuth D, Gilmour A, Kilp M. Flatness properties of S -posets. Commun Algebra 2006; 34: 1291–1317.
  • Bulman-Fleming S, Laan V. Lazard’s theorem for S -posets. Math Nachr 2005; 278: 1743–1755.
  • Bulman-Fleming S, Mahmoudi M. The category of S -posets. Semigroup Forum 2005; 71: 443–461.
  • Fakhruddin SM. Absolute flatness and amalgams in pomonoids. Semigroup Forum 1986; 33: 15–22.
  • Fakhruddin SM. On the category of S -posets. Acta Sci Math (Szeged) 1988; 52: 85–92.
  • Golchin A, Rezaei P. Subpullbacks and flatness properties of S -posets. Commun Algebra 2009; 37: 1995–2007.
  • Khosravi R. On direct products of S -posets satisfying flatness properties. Turk J Math 2014; 38: 79–86.
  • Laan V. Pullbacks and flatness properties of acts I. Commun Algebra 2001; 29: 829–850.
  • Qiao HS, Li F. When all S -posets are principally weakly flat. Semigroup Forum 2007; 75: 536–542.
  • Qiao HS, Li F. The flatness properties of S -poset A(I) and Rees factor S -posets. Semigroup Forum 2008; 77: 306–315.
  • Qiao HS, Liu ZK. On the homological classification of pomonoids by their Rees factor S -posets. Semigroup Forum 2009; 79: 385–399.
  • Shi XP. Strongly flat and po-flat S -posets. Commun Algebra 2005; 33: 4515–4531.
  • Shi XP, Liu ZK, Wang FG, Bulman-Fleming S. Indecomposable, projective, and flat S -posets. Commun Algebra 2005; 33: 235–251.
  • Xie XY, Shi XP. Order-congruences on S -posets. Commun Korean Math Soc 2005; 20: 1–14.