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Metric operator and geodesic orbit property for a standard homogeneous Finsler metric (2404.13367v1)

Published 20 Apr 2024 in math.DG

Abstract: In this paper, we introduce the metric operator for a compact homogeneous Finsler space, and use it to investigate the geodesic orbit property. We define the notion of standard homogeneous $(\alpha_1,\cdots,\alpha_s)$-metric which generalizes the notion of standard homogeneous $(\alpha_1,\alpha_2)$-metric. We classify all connected simply connected homogeneous manifold $G/H$ with a compact connected simple Lie group $G$ and two irreducible summands in its isotropy representation, such that there exists a standard homogeneous $(\alpha_1,\alpha_2)$-metric which is g.o. but not naturally reductive on $G/H$. We also prove that on a generalized Wallach space which is not a product of three symmetric spaces, any standard homogeneous $(\alpha_1,\alpha_2,\alpha_3)$-metric $F$ with respect to the canonical decomposition is g.o. on $G/H$ if and only if $F$ is a normal homogeneous Riemannian metric.

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