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arXiv · 1909.07269

Arbitrarily large torsion in Khovanov cohomology

Sujoy Mukherjee·Dirk Schuetz
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Abstract

For any positive integer $k$ and $p\in \{3,5,7\}$ we construct a link which has a direct summand $\mathbb{Z}/p^k\mathbb{Z}$ in its Khovanov cohomology.

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Sujoy Mukherjee, Dirk Schuetz. 2019-09-16. Arbitrarily large torsion in Khovanov cohomology. https://arxiv.org/abs/1909.07269

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