Comments (4)
Hi! Thanks for reporting this.
I think I managed to reduce this to a simpler example:
using AbstractAlgebra, Groebner
P, (x1,x2) = PolynomialRing(GF(1119649), ["x1", "x2"])
gb = [x1 + 1]
f = x1 + x2^2
f_nf = Groebner.normalform(gb, f, ordering=Groebner.DegRevLex())
iszero(Groebner.normalform(gb, f - f_nf, ordering = Groebner.DegRevLex()))
There seems to be an issue with the sorting of the F4 matrix' columns
from groebner.jl.
Here is quick-fix #83
It seems to fix your example for me
from groebner.jl.
Works for me too, many thanks for fixing this so quickly!
from groebner.jl.
Great, I have pushed this change to the master branch. Will probably make a new release soon
from groebner.jl.
Related Issues (20)
- Julia 1.6 support HOT 2
- Integer Type Error HOT 1
- Error with `hashnextindex(::UInt32, ::Int64, ::UInt32)` HOT 3
- Compute basis in parallel HOT 19
- Groebner Basis with parameters HOT 2
- Computing bases up to some degree
- Issues with Computing Groebner Basis for High-Order Runge Kutta Systems with 8 Stages and Order 7 HOT 12
- RecoverableException in Groebner\to18i\src\interface.jl:100 HOT 3
- Possible to make Groebner.jl support 32bit Julia? HOT 1
- Bug in `groebner` in Z_2 HOT 1
- Huge amount of dynamic dispatch HOT 2
- Does Groebner use checked arithmetic, or does it fail silently if a coefficient overflows? HOT 2
- exponent vector overflow, restarting HOT 8
- Fails to compute correct Gröbner basis on DynamicPolynomials variable with non-standard monomial ordering HOT 7
- Many invalidations
- groebner does not return leading coefficient 1 HOT 6
- Calculate transformation matrix HOT 9
- Reduce a Polynomial by a Groebner Basis HOT 2
- llvmcall deprecation warnings HOT 1
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from groebner.jl.