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Automorphic Orbits in Free Non-associative Algebras

✍ Scribed by Alexander A Mikhalev; Ualbai Umirbaev; Jie-Tai Yu

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
196 KB
Volume
243
Category
Article
ISSN
0021-8693

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✦ Synopsis

We consider finitely generated free non-associative algebras, free commutative non-associative algebras, and free anti-commutative non-associative algebras. We study orbits of elements of these algebras under the action of automorphism groups. Using free differential calculus we obtain matrix criteria for a system of elements to have given rank (or to be primitive). It gives us a possibility to construct fast algorithm to recognize primitive systems of elements. We show that if an endomorphism of a free algebra preserves the automorphic orbit of a nonzero element, then it is an automorphism of this algebra. In particular, endomorphisms preserving primitivity of elements are automorphisms.

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