$\mathbb{G}$-uniform weighted K-stability for models on klt varieties

Abstract

In this paper, we make a generalization of the results in \cite{Li22a} to the singular and weighted setting. In particular, we show that on a polarized projective klt variety, the $\mathbb{G}$-uniform weighted K-stability for models implies the $\mathbb{G}$-coercivity of the weighted Mabuchi functional. In the toric case, we further show that the $({\mathbb{C}}^{\times }{)}^n$-uniform $(\mathrm{v},\mathrm{w}\cdot {\ell }_{\mathrm{ext}})$-weighted K-stability is preserved when perturbing the polarization on the resolution, which implies the existence of the weighted extremal metric(s) on the resolution if the weight function $\mathrm{v}$ is log-concave.

1. We add the "envelope property" assumption to the statement of Theorem 1.2. 2. We add some details and fix some typos