kalmar/Groups.jl
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update \times outer constructor

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kalmar 2017-07-21 13:23:16 +02:00
parent 6820274f65
commit ae97c20e62
1 changed files with 4 additions and 3 deletions
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7
src/DirectProducts.jl
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@ -58,7 +58,10 @@ end
#
###############################################################################
×(G::Group, H::Group) = DirectProductGroup([G,H])
function ×(G::Group, H::Group)
G == H || throw("Direct products are defined only for the same groups")
return DirectProductGroup(G,2)
end
###############################################################################
#
@ -66,8 +69,6 @@ end
#
###############################################################################
(G::DirectProductGroup)() = G([H() for H in G.factors])
(G::DirectProductGroup)(g::DirectProductGroupElem) = G(g.elts)
doc"""