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fix bug in reduce!(::Automorphism)

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kalmarek 2020-03-25 16:25:21 +01:00
parent 6d22c82ab3
commit 7bc26ece79
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2 changed files with 10 additions and 1 deletions
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2
src/AutGroup.jl
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@ -294,7 +294,7 @@ function reduce!(w::Automorphism)
while !reduced
reduced = simplifyperms!(Bool, w) && freereduce!(Bool, w)
end
return W
return w
end
###############################################################################

9
test/AutGroup-tests.jl
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@ -182,6 +182,15 @@
g_im = g(Groups.domain(A))
@test length.(g_im) == (1,1,1,1)
g = A(Groups.σ(perm"(1,2)(4)"))
h = A(Groups.σ(perm"(2,3,4)"))
@test g*h isa Groups.Automorphism{4}
f = g*h
Groups
@test Groups.syllablelength(f) == 2
@test Groups.reduce!(f) isa Groups.Automorphism{4}
@test Groups.syllablelength(f) == 1
end
@testset "specific Aut(F4) tests" begin