Bao–Wang's stability conjecture for imathcanonical bases

Let Uı\mathbf{U}^\imath be the \imathquantum group with parameters ς{\boldsymbol \varsigma} and κ{\boldsymbol \kappa}. For each λ,μ,νX+\lambda,\mu,\nu\in X^+, let Vı(λ,μ;ν)V^\imath(\lambda,\mu;\nu) be the corresponding based Uı\mathbf{U}^\imath-module, and let

π˙λ,μ;νı:U˙ıVı(λ,μ;ν)\dot{\pi}^\imath_{\lambda,\mu;\nu}:\dot{\mathbf{U}}^\imath\longrightarrow V^\imath(\lambda,\mu;\nu)

be the homomorphism defined by xxvλ,μ;νıx\mapsto xv^\imath_{\lambda,\mu;\nu}. Stability conjecture. There exist parameters ς{\boldsymbol \varsigma} and κ{\boldsymbol \kappa} such that the homomorphisms π˙λ,μ;νı\dot{\pi}^\imath_{\lambda,\mu;\nu} are based for all λ,μ,νX+\lambda,\mu,\nu\in X^+. This asserts the desired stability of the \imathcanonical bases under the maps from the modified \imathquantum group; the source supplies no resolution status.

Sources & referencesView supporting material

Primary source

Hideya Watanabe, “Stability of bases of locally finite type”, arXiv:2306.12199 (2023).

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