K. Auinger's scientific contributions

Publication (1)

Article
A class of regular semigroups closed under taking direct products, regular subsemigroups, and homomorphic images is an existence-variety (or e-variety) of regular semigroups. Each e-variety of locally inverse semigroups can be characterized by a set of bi-identities. These are identities of terms of type $\langle 2, 2\rangle$ in two sorts of variab...

Citations

... This concept was the natural adaptation for e-varieties of the more common notion of free objects in varieties of algebras. Most paper at that time studied the structure of the bifree objects in e-varieties that have them, and tried to obtain Birkhoff type theorem for e-varieties [1,2,3,5,7,14,15,24] (see also [6,17,18,19]). ...