Free subsemigroups in automorphism group of a polynomial ring of two variables over number fields
Sufficient conditions under which the semigroup generated by twoautomorphism of the polynomial ring in two variables over a number field P will be free are given. The set of free finitely generated subsemigroups of the triangle automorphism subgroup in $AutP[x,y]$ and the set of non-free finitely...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Vasyl Stefanyk Precarpathian National University
2011-12-01
|
| Series: | Karpatsʹkì Matematičnì Publìkacìï |
| Online Access: | http://journals.pu.if.ua/index.php/cmp/article/view/95/84 |