In this paper, we study the warped structures of Finsler metrics.
We obtain the differential equation that characterizes the Finsler
warped product metrics with vanishing Douglas curvature. By solving
this equation, we obtain all Finsler warped product Douglas metrics.
Some new Douglas Finsler metrics of this type are produced by
using known spherically symmetric Douglas metrics.
Finsler metric, warped product, Douglas metric, spherically symmetric metric
22E46 - Semisimple Lie groups and their representations
53C30 - Homogeneous manifolds [See also 14M15, 14M17, 32M10, 57T15]