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A rank-three refutation of the Okada discriminant identity

Hivert--Scott Conjecture 7.9 fails at N = 3 over the rationals with X = (1,2) and Y = (1): the regular-trace determinant is -16 and the cell-determinant product is 1.

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Refutation at rank three

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Pinnacle fibres need not be latticesPinnacle fibres need not belatticesA rank-three refutation of the Okada discriminant identityA rank-three refutation of theOkada discriminant identity
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Lean sourceResearch workspace
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Closed
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1
Layer
D5/S0
Domain
Certificates
Node ID
D5/S0/Certificates/Combinatorics/OkadaDiscriminantRefutation
Repository path
D5/S0/Certificates/Combinatorics/OkadaDiscriminantRefutation.lean
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sha256:76a8db6a0f78609b1b9d4a959c8392f2752f2daaddc1930e046e34ce07d0f608
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b52262a023c4db9bb30a128ebfd80ea4ef4c1a53
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37a24ddf3b9983bdabf0acbfd9b32b06c35c28d3

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