On Frobenius algebras obtained from stated skein algebras

Zhihao Wang

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arXiv · 2310.13116

On Frobenius algebras obtained from stated skein algebras

Zhihao Wang

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Abstract

When the quantum parameter $q^{\frac{1}{2}}$ is a root of unity of odd order and the punctured bordered surface has nonempty boundary, we prove the fraction ring of the stated skein algebra (that is the localization over all nonzero elements) is a symmetric Frobenius algebra over both the field of fractions of the image of the Frobenius map and the field of fractions of the center of the stated skein algebra. We also calculate Traces of the fraction ring of the stated skein algebra over these two fields.

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Zhihao Wang. 2023-10-19. On Frobenius algebras obtained from stated skein algebras. https://arxiv.org/abs/2310.13116

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