Semigroup Forum, 2026 (SCI-Expanded, Scopus)
In this paper, we present two methods for constructing uninorms on a bounded lattice L based on a uninorm defined on the sublattice 0,a (or b,1) of L. We also examine the relationships between these methods and existing construction approaches in the literature. Furthermore, we provide several illustrative examples that demonstrate the effectiveness of the proposed constructions.