Intersection complex of any threefold as a Chow motive
Algebraic Geometry
2025-12-02 v1
Abstract
Motivated by the characterization of the intersection complex in terms of SMorel's weight truncations, we introduced an object in the setting of motivic sheaves for certain schemes and weight profiles . In this article, we show that when is any threefold, this object satisfies Wildeshaus's characterization of a motivic intersection complex. In particular, we demonstrate that the construction is a suitably functorial Chow motive lifting the motivic intersection complex for an arbitrary threefold.
Keywords
Cite
@article{arxiv.2512.01297,
title = {Intersection complex of any threefold as a Chow motive},
author = {Shruti Rastogi and Vaibhav Vaish},
journal= {arXiv preprint arXiv:2512.01297},
year = {2025}
}
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37 pages