For SU(4), local equivalence classes under SU(2)⊗SU(2) multiplication are not geometrically represented by the Weyl chamber; that chamber appears only under projective-local equivalence that ignores global phases.
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2 Pith papers cite this work. Polarity classification is still indexing.
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Multivariate super Krawtchouk polynomials are defined via representations of the general linear Lie superalgebra, with proofs of orthogonality, recurrence relations, and links to fermionic Fock-space zonal spherical functions.
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On the KAK Decomposition and Equivalence Classes
For SU(4), local equivalence classes under SU(2)⊗SU(2) multiplication are not geometrically represented by the Weyl chamber; that chamber appears only under projective-local equivalence that ignores global phases.
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Super Krawtchouk Polynomials via Lie Superalgebras
Multivariate super Krawtchouk polynomials are defined via representations of the general linear Lie superalgebra, with proofs of orthogonality, recurrence relations, and links to fermionic Fock-space zonal spherical functions.