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Browsing by Author "Ualbai U. Umirbaev"

Browsing by Author "Ualbai U. Umirbaev"

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  • Ivan P. Shestakov; Ualbai U. Umirbaev (2013-06-24)
    Free Akivis algebras and primitive elements in their universal enveloping algebras are investigated. It is proved that subalgebras of free Akivis algebras are free and that finitely generated subalgebras are finitely ...
  • Ivan P. Shestakov; Ualbai U. Umirbaev (2012-09-21)
    It is proved that the well known Nagata automorphism of the polynomial ring in three variables over a field of characteristic zero is wild, that is, it can not be decomposed into a product of elementary automorphisms.
  • Ivan P. Shestakov; Ualbai U. Umirbaev (2012-11-15)
    It is proved that the well known Nagata automorphism of the polynomial ring in three variables over a field of characteristic zero is wild, that is, it can not be decomposed into a product of elementary automorphisms.
  • Ivan P. Shestakov; Ualbai U. Umirbaev (2012-11-15)
    It is proved that the well known Nagata automorphism of the polynomial ring in three variables over a field of characteristic zero is wild, that is, it can not be decomposed into a product of elementary automorphisms.
  • Ualbai U. Umirbaev; Jie-Tai Yu (2012-11-15)
    It is proved that there exist wild coordinates in the polynomial algebra in three variables over a field of characteristic zero. This result implies the famous Nagata conjecture.
  • Ivan P. Shestakov; Ualbai U. Umirbaev (2013-06-24)
    It is proved that the well known Nagata automorphism of the polynomial ring in three variables over a field of characteristic zero is wild, that is, it can not be decomposed into a product of elementary automorphisms.
  • Ualbai U. Umirbaev; Jie-Tai Yu (2013-06-24)
    It is proved that there exist wild coordinates in the polynomial algebra in three variables over a field of characteristic zero. This result implies the famous Nagata conjecture.

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