Hi all, I want to define a two sided ideal I=[x*y*x*y-x*y, y*x*y*x-x*y*x] in an unital associative free algebra F.<x,y>. (not just in a free algebra)
I wrote in sage: F.<x,y>=FreeAlgebra(QQ, implementation='letterplace') I=F*[x*y*x*y-x*y, y*x*y*x-x*y*x]*F I() "But, the error I have faced to is the following: ArithmaticError: Can only subtract the elements of the same degree." Also I want to know how can I create a non-commutative infinite dimensional quotient algebra F/I. Is there any way to define such an ideal and this quotient in sage or other part of sage like Gap or Singular? Thanks -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/groups/opt_out.
