Some properties of weak uninorms
A weak uninorm is not only a generalization of a uninorm but also of a nullnorm. In this paper, we will show that, if a weak uninorm is gamma-Archimedean, then it is an Archimedean nullnorm; and if a weak uninorm is e-Archimedean, then it is an Archimedean uninorm. Moreover, the De Morgan triples of the weak uninorms will be characterized, too. (C) 2011 Elsevier Inc. All rights reserved.
weak uninorm uninorm nullnorm archimedean de morgan triple