RC-positive metrics on rationally connected manifolds

Autor: Xiaokui Yang
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Forum of Mathematics, Sigma, Vol 8 (2020)
Druh dokumentu: article
ISSN: 2050-5094
DOI: 10.1017/fms.2020.32
Popis: In this paper, we prove that if a compact Kähler manifold X has a smooth Hermitian metric $\omega $ such that $(T_X,\omega )$ is uniformly RC-positive, then X is projective and rationally connected. Conversely, we show that, if a projective manifold X is rationally connected, then there exists a uniformly RC-positive complex Finsler metric on $T_X$ .
Databáze: Directory of Open Access Journals