On Mon, Feb 6, 2012 at 12:21 PM, John Cremona john.crem...@gmail.com wrote:
Thanks!
Barinder has genuine matrices A, B which give a representation of A_4
in 26 dimensions over Q(zeta_11), i.e. A^2=I and B^3 = I and some
commutator relation holds. I was surprised when he told me that
On Mon, Feb 6, 2012 at 6:49 AM, John Cremona john.crem...@gmail.com wrote:
I was trying to find eigenspaces of a 26x26 matrix over Q(zeta_11)
(for a modular forms application) and ran into:
RuntimeError: we ran out of primes in multimodular charpoly algorithm
which on investigation led me
I was trying to find eigenspaces of a 26x26 matrix over Q(zeta_11)
(for a modular forms application) and ran into:
RuntimeError: we ran out of primes in multimodular charpoly algorithm
which on investigation led me to the following lines in
sage/ext/multi_modular.pyx:
# We use both integer and
On Mon, Feb 6, 2012 at 6:49 AM, John Cremona john.crem...@gmail.com wrote:
I was trying to find eigenspaces of a 26x26 matrix over Q(zeta_11)
(for a modular forms application) and ran into:
Can you make your matrix available, e.g., as an sobj on sage.math (or
somewhere) that I can download.
Thanks!
Barinder has genuine matrices A, B which give a representation of A_4
in 26 dimensions over Q(zeta_11), i.e. A^2=I and B^3 = I and some
commutator relation holds. I was surprised when he told me that
A.eigenspaces_right() had beeen running for 2 days (though it turned
out that that A
On 6 February 2012 17:21, John Cremona john.crem...@gmail.com wrote:
Thanks!
Barinder has genuine matrices A, B which give a representation of A_4
in 26 dimensions over Q(zeta_11), i.e. A^2=I and B^3 = I and some
commutator relation holds. I was surprised when he told me that
