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arXiv · 1305.1642

Positive half of the Witt algebra acts on triply graded link homology

Mikhail Khovanov·Lev Rozansky
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Abstract

The positive half of the Witt algebra is the Lie algebra spanned by vector fields x^{m+1} d/dx acting as differentiations on the polynomial algebra Q[x] upon which the Soergel bimodule construction of triply graded link homology is based. We show that this action of Witt algebra can be extended to the link homology.

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Mikhail Khovanov, Lev Rozansky. 2013-05-07. Positive half of the Witt algebra acts on triply graded link homology. https://arxiv.org/abs/1305.1642

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