New methods to construct uninorms by extending uninorms with closure operators and t-superconorms

summary:In this paper, we provide new methods to construct uninorms by extending given uninorms on a subinterval of a bounded lattice with closure operators (resp. interior operators) and t-superconorms (resp. t-subnorms). Meanwhile, these methods for uninorms generalize some known methods for uninorms in the literature. An example is also provided to show our method.