Yi Hu

collaborators

3 papers

math.DG2026

Generalized moment maps, reduction and complex quotients

Yi Hu, Xiangsheng Wang

In this note, we introduce the concept of momentumly closed forms. A non-degenerate momentumly closed two-form and its generalized moment map are the generalization of two well-kno…

math.AG2026

$G$ -Quotients of Grassmannians and Equations

Yi Hu

Laurent Lafforgue's presentation of a Grassmannian Gr $^{d, E}$ naturally comes equipped with the induced action of a subtorus $T_{∙}$ of PGL $(E)$ . By investigating the…

math.AG2025

Universal Characteristic-free Resolution of Singularities, I

Yi Hu

We prove that for any singular integral affine variety $X$ of finite presentation over a perfect field defined over $Z$ , there exists a smooth morphism from $Y$ onto $X$ su…

Generalized moment maps, reduction and complex quotients

G-Quotients of Grassmannians and Equations

Universal Characteristic-free Resolution of Singularities, I

$G$ -Quotients of Grassmannians and Equations