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arxiv: 2602.22060 · v2 · pith:5HBRJGTNnew · submitted 2026-02-25 · 🧮 math-ph · hep-th· math.MP· nlin.SI

Solving the tetrahedron equation by Teichm\"uller TQFT

classification 🧮 math-ph hep-thmath.MPnlin.SI
keywords modelsequationteichmtetrahedrontqftullerapproachassumptions
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We propose an approach to construct three-dimensional lattice models using line defects in state integral models on shaped triangulations of 3-manifolds. The Boltzmann weights for these models satisfy a variant of the tetrahedron equation, which implies integrability under suitable assumptions on R-matrices and transfer matrices. As an explicit example, we present a solution produced by Teichm\"uller TQFT.

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  1. Tetrahedral $L$-operators, tensor Schur polynomials and $q$-deformed loop elementary symmetric functions

    math-ph 2026-04 unverdicted novelty 6.0

    Tetrahedral L-operator partition functions equal tensor Schur polynomials when q=0 and q-deformed loop elementary symmetric functions in general.