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math.AG2026
The equivariant Milnor-Witt motive of
Nanjun Yang
We provide a decomposition of the equivariant Milnor-Witt motive for the moduli space of stable curves . As a result, the equivariant Chow-Witt ring $…
math.AG2024
Witt Group of Nondyadic Curves
Nanjun Yang
Witt group of real algebraic curves has been studied since Knebusch in 1970s. But few results are known if the base field is non-Archimedean except the hyperelliptic case by works…
math.AG2018
General Motivic Cohomology and Symplectic Orientation
Nanjun Yang
In this paper, we present a general approach to establish motivic cohomology and build part of its six operations formalism. Applying this together with symplectic orientation on M…