# Is there a way to create the ring of multi-variable polynomials over a field?

Suppose I create a field in SAGE. Maybe it is my own field implemented in some particular way, but I know it is a field and it can do all the operations. Is there any way at all to create a ring of polynomials in several variables over my field? Of course it might be less efficient than SINGULAR implementation, but still some fall back "toy" implementation would be nice, so that I can run the "toy" Groebner basis algorithm on it.

UPDATE: it turns out, the question should have been formulated as "how to make SAGE believe that my field is a field?". Once this is solved, the usual PolynomialRing function works as expected.

`PolynomialRing`

does not help (and is the answer)?By the way, if you have a nice implementation of some interesting field, please consider contributing it to Sage !