University of Mohaghegh Ardabili Journal of Finsler Geometry and its Applications 2783-0500 2 1 2021 07 01 On the existence of 3-dimensional Berwald manifolds 86 95 1266 10.22098/jfga.2021.1266 EN Mosayeb Zohrehvand Department of Mathematical Science, Faculty of Mathematical Science and Statistics, Malayer University, Malayer, Iran. Email: m.zohrehvand@malayeru.ac.ir Journal Article 2021 08 04 In this paper, we prove that there is not exists non-Riemannian 3-dimensional Berwald manifold with constant main scalars. Moor frame weakly Landsberg metric Landsberg metric Berwald metric Randers metric https://jfga.uma.ac.ir/article_1266_db5b40348f88695508e1df200367be65.pdf