Some results on the Hilbert space on finite-dimensional C*-algebras #
This file contains some results on the Hilbert space on finite-dimensional C*-algebras (so just a direct sum of matrix algebras over ℂ).
Section single_block #
Section direct_sum #
The positive-definite matrices associated to a faithful positive functional on each block.
Pointwise real powers of a positive-definite element of PiMat.
Equations
- Pi.PosDef.rpow ha r i = ⋯.rpow r
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The modular automorphism on a direct product of matrix blocks.
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- One or more equations did not get rendered due to their size.
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Forward map underlying psi for faithful positive functionals on matrix-block products.
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Transpose each matrix block of a product as an algebra equivalence to the opposite algebra.
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Distribute the tensor product of matrix families over pairs of indices.
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Identify each tensor product of matrix blocks with a matrix on product indices.
Equations
- f₃Equiv = AlgEquiv.piCongrRight fun (i : k × k) => kroneckerToTensor.symm
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The tensor-product equivalence used to pass from block products to block-diagonal matrices.
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Inverse map underlying psi for faithful positive functionals on matrix-block products.
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Linear equivalence between linear maps and tensor products for faithful positive block functionals.
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