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⊗ as tensor_product alias #8

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Merged
merged 4 commits into from
Mar 27, 2025
Merged

⊗ as tensor_product alias #8

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7f46572
specialize tensor_product for OneToOne
ogauthe Mar 26, 2025
0410299
⊗ as tensor_product alias
ogauthe Mar 27, 2025
987626e
bump version
ogauthe Mar 27, 2025
bd7d7c4
Merge branch 'main' into otimes
ogauthe Mar 27, 2025
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2 changes: 1 addition & 1 deletion Project.toml
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Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
name = "TensorProducts"
uuid = "decf83d6-1968-43f4-96dc-fdb3fe15fc6d"
authors = ["ITensor developers <[email protected]> and contributors"]
version = "0.1.1"
version = "0.1.2"

[weakdeps]
BlockArrays = "8e7c35d0-a365-5155-bbbb-fb81a777f24e"
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11 changes: 2 additions & 9 deletions src/tensor_product.jl
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Expand Up @@ -9,15 +9,6 @@ function require_one_based_axis(a::AbstractUnitRange)
end

# ============================== tensor product ==========================================
⊗() = tensor_product()
⊗(a) = tensor_product(a)

# default. No type restriction to allow sectors as input
⊗(a1, a2) = tensor_product(a1, a2)

# allow to specialize ⊗(a1, a2) to fusion_product
⊗(a1, a2, as...) = ⊗(⊗(a1, a2), as...)

tensor_product() = OneToOne()
tensor_product(a) = a
tensor_product(a1, a2, as...) = tensor_product(tensor_product(a1, a2), as...)
Expand All @@ -32,3 +23,5 @@ end
tensor_product(::OneToOne, ::OneToOne) = OneToOne()
tensor_product(::OneToOne, a::AbstractUnitRange) = tensor_product(a)
tensor_product(a::AbstractUnitRange, ::OneToOne) = tensor_product(a)

const ⊗ = tensor_product
18 changes: 6 additions & 12 deletions test/test_tensor_product.jl
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Expand Up @@ -7,18 +7,6 @@ using BlockArrays: blockedrange, blockisequal
r0 = OneToOne()
b1 = blockedrange([1, 2])

@testset "⊗" begin
@test ⊗() isa OneToOne
@test ⊗(1:2) == 1:2
@test ⊗(1:2, 1:3) == 1:6
@test ⊗(1:2, 1:3, 1:4) == 1:24

@test ⊗(r0, r0) isa OneToOne
@test blockisequal(⊗(b1, b1), blockedrange([1, 2, 2, 4]))
@test blockisequal(⊗(b1, r0), b1)
@test blockisequal(⊗(r0, b1), b1)
end

@testset "tensor_product" begin
@test tensor_product() isa OneToOne
@test tensor_product(1:2) == 1:2
Expand All @@ -30,5 +18,11 @@ end
@test_throws ArgumentError tensor_product(2:3, 2:2)

@test tensor_product(r0, r0) isa OneToOne
@test blockisequal(tensor_product(b1, r0), b1)
@test blockisequal(tensor_product(r0, b1), b1)

@test blockisequal(tensor_product(b1, b1), blockedrange([1, 2, 2, 4]))
@test blockisequal(tensor_product(b1, b1), blockedrange([1, 2, 2, 4]))

@test ⊗(r0, r0) isa OneToOne
end
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