Semisimplicity conjecture for the category KLkKL_k

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Let g\mathfrak{g} be the affine Lie superalgebra considered in the paper, let kk be its level, and let KLkKL_k denote the corresponding category of modules. The category KLkKL_k is semisimple when every object is a direct sum of simple objects.

Semisimplicity conjecture. The category KLkKL_k is semisimple if and only if

k∈{−1,−m+1m+2 | m∈Z≥0}.k \in \left\{-1,-\frac{m+1}{m+2}\ \middle|\ m\in\mathbb{Z}_{\geq 0}\right\}.

This is expected based on the paper's semisimplicity theorem and its analysis of admissible levels. The supplied text does not state that the conjecture has been proved or disproved.

References

Primary source

Drazen Adamovic, Pierluigi Moseneder Frajria and Paolo Papi, “On the semisimplicity of the category KL_k for affine Lie superalgebras”, arXiv:2107.12105 (2022).

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