CONTENTS Introduction.................................................................................................................... 5 Section 1. The group of weak automorphisms...................................................... 6 Section 2. Weak automorphisms of finitely generated free algebras................ 9 Section 3. Representation of groups as weak automorphism groups of algebras......................................................................................................................... 17 Section 4. Saturated and pseudo-saturated algebras.......................................... 22 Section 5. Weak automorphisms of unary algebras on groups.......................... 27 Section 6. Restricted weak automorphisms........................................................... 31 References.................................................................................................................... 35
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