A residue current associated with a twisting cochain: duality and comparison formula

Jimmy Johansson

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arXiv · 2306.02458

A residue current associated with a twisting cochain: duality and comparison formula

Jimmy Johansson

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Abstract

Let $\mathcal{F}^\bullet$ be a complex of coherent $\mathcal{O}_X$-modules over a complex manifold $X$. We give a construction of a residue current associated with this complex that generalizes Andersson and Wulcan's construction of a residue current associated with a coherent $\mathcal{O}_X$-module $\mathcal{F}$. The main ingredients are to give a construction of a residue current associated with a twisting cochain in the sense of Toledo and Tong and to establish a comparison formula for these currents that generalizes an analogous formula given by L\"ark\"ang.

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Jimmy Johansson. 2023-06-04. A residue current associated with a twisting cochain: duality and comparison formula. https://arxiv.org/abs/2306.02458

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