In this paper, we construct and study a Serre-type spectral sequence for motivic cohomology associated with a map of bisimplicial schemes with motivically cellular fiber. Then, we show how to apply it in order to approach the computation of the motivic cohomology of the Nisnevich classifying space of projective general linear groups. This naturally yields an explicit description of the motive of a Severi–Brauer variety in terms of twisted motives of its Cech simplicial scheme.
Tanania, F. (2024). A Serre-type spectral sequence for motivic cohomology. ALGEBRAIC GEOMETRY, 11(3), 386-420 [10.14231/AG-2024-013].
A Serre-type spectral sequence for motivic cohomology
Tanania F.
2024
Abstract
In this paper, we construct and study a Serre-type spectral sequence for motivic cohomology associated with a map of bisimplicial schemes with motivically cellular fiber. Then, we show how to apply it in order to approach the computation of the motivic cohomology of the Nisnevich classifying space of projective general linear groups. This naturally yields an explicit description of the motive of a Severi–Brauer variety in terms of twisted motives of its Cech simplicial scheme.
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