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PreprintarXiv licencearXiv

Kähler-Finsler rigidity of the Kobayashi metric and the Kähler base of weakly Kähler-Finsler metrics

Abstract

In this paper, we establish a rigidity theorem: for every balanced, smooth, bounded pseudoconvex domain, its Kobayashi metric is a smooth, strongly pseudoconvex, Kähler-Finsler metric restricted on a neighborhood of the origin if and only if the domain is a Hermitian ellipsoid, biholomorphic to the unit ball. Thus for any balanced, smooth, bounded, strictly convex, and strongly pseudoconvex domain that is not biholomorphic to the unit ball, its Kobayashi metric is a non-Kähler-Finsler, weakly Kähler-Finsler metric. We also prove that the base manifold of every weak Kähler-Finsler metric is Kähler.

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BibTeX
@misc{ge2026kählerfinsler,
  title = {{Kähler-Finsler rigidity of the Kobayashi metric and the Kähler base of weakly Kähler-Finsler metrics}},
  author = {Xiaoshu Ge},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2610.25890},
  eprint = {2610.25890},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.25890},
}
RIS
TY  - UNPB
TI  - Kähler-Finsler rigidity of the Kobayashi metric and the Kähler base of weakly Kähler-Finsler metrics
AU  - Xiaoshu Ge
PY  - 2026
DA  - 2026/10/19
PB  - arXiv
DO  - 10.48550/arxiv.2610.25890
UR  - https://arxiv.org/abs/2610.25890
AB  - In this paper, we establish a rigidity theorem: for every balanced, smooth, bounded pseudoconvex domain, its Kobayashi metric is a smooth, strongly pseudoconvex, Kähler-Finsler metric restricted on a neighborhood of the origin if and only if the domain is a Hermitian ellipsoid, biholomorphic to the unit ball. Thus for any balanced, smooth, bounded, strictly convex, and strongly pseudoconvex domain that is not biholomorphic to the unit ball, its Kobayashi metric is a non-Kähler-Finsler, weakly Kähler-Finsler metric. We also prove that the base manifold of every weak Kähler-Finsler metric is Kähler.
ER  -