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arXiv · 2106.05176

Generators for categorical Hall algebras of surfaces

Tudor Pădurariu
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Abstract

For a smooth surface $S$, Porta-Sala defined a categorical Hall algebra generalizing previous work in K-theory of Zhao and Kapranov-Vasserot. We construct semi-orthogonal decompositions for categorical Hall algebras of points on $S$. We refine these decompositions in K-theory for a topological K-theoretic Hall algebra.

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Tudor Pădurariu. 2021-06-09. Generators for categorical Hall algebras of surfaces. https://arxiv.org/abs/2106.05176

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