Hi,
I have the following problem:
M=MatrixSpace(GF(2^2,'a'),5)
A=M.random_element()
N=MatrixSpace(GF(2^4,'a'),5)
N(A)
TypeError: unable to coerce from a finite field other than the prime
subfield
Is there a simple way around non prime subfield embeddings?
Thanks,
--
To post to this group, se
Hi,
I wish to construct a linear map on V corresponding to the field
automorphism theta:
K=GF(2^64,'a')
theta=Hom(K,K)[1] ## this sends a --> a^2
V=VectorSpace(GF(2),64)
I thought this would be straightforward (unless my maths is wrong),
but I cannot find any functions to h
Hi,
suppose I have a field embedding A = GF(2^4) -> B = GF(2^20) say,
and I pick a homomorphism phi from C=A.Hom(GF(2^20,'x')), e.g.
sage: phi
Ring morphism:
From: Finite Field in x of size 2^4
To: Finite Field in x of size 2^20
Defn: x |--> x^19 + x^14 + x^13 + x^12 + x^10
