Affiliation:
1. School of Mathematics and Statistics, Lanzhou University, Lanzhou 730000, China
Abstract
In this paper, we give a sufficient condition under which an involution monoid generates a variety with continuum many subvarieties. According to this result, several involution [Formula: see text]-trivial monoids are shown to generate varieties with continuum many subvarieties. These examples include Rees quotients of free involution monoids, Lee monoids with involution, and Straubing monoids with involution.
Publisher
World Scientific Pub Co Pte Ltd