Syllabus
1. Semigroups
Green theory
Regularity
Inverse semigroups (Vagner-Preston theorem, congruences) 2. Quasigroups and loops
Basic infrastructure and constructions, isotopy
Weakly associative loops 3. Medial and selfdistributive grupoids
Annotation
Introduction to structural properties of some classes of binary algebras - quasigroups, loops, semigroups, medial and self-distributive groupoids.