On generalized Berwald surfaces with locally symmetric fourth root metrics

Cs. Vincze, T. Khoshdani, M. Oláh

Let $m=2l$ be a positive natural number, $l=1,2,\dots .$ A Finslerian metric $F$ is called an $m$-th root metric if its $m$-th power $F^m$ is of class $C^m$ on the tangent man…