Open 333767a0-8bb0-4499-a032-33e52572d678 opened 4 years ago
Deep-copying matrices over laurent-series-rings whose base-rings are GF(pn) with large enough values of p,n, seem to fail for most matrices.
sage: import copy sage: K = GF(41^3) sage: S.<s> = LaurentSeriesRing(K) sage: A = matrix(S, [(5*K.gen()^2 + 8*K.gen() + 31)*s]) sage: A [(5*z3^2 + 8*z3 + 31)*s] sage: C = copy.deepcopy(A) # succeeds sage: A = matrix(S, [(5*K.gen()^2 + 8*K.gen() + 31)*s + s^2]) sage: A [(5*z3^2 + 8*z3 + 31)*s + s^2] sage: C = copy.deepcopy(A) # fails --------------------------------------------------------------------------- ... TypeError: unable to convert PARI t_SER to finite field element
Component: linear algebra
Keywords: copy, matrix, laurent, finite_fields
Issue created by migration from https://trac.sagemath.org/ticket/30422
Moving this ticket to 9.4, as it seems unlikely that it will be merged in 9.3, which is in the release candidate stage
Deep-copying matrices over laurent-series-rings whose base-rings are GF(pn) with large enough values of p,n, seem to fail for most matrices.
Component: linear algebra
Keywords: copy, matrix, laurent, finite_fields
Issue created by migration from https://trac.sagemath.org/ticket/30422