Seismic rays as Finsler geodesics.
First the authors give a very good, short and transparent survey of the most important notions of Finsler geometry including Wagner spaces. Then separable velocity functions are considered, and it is shown that seismic rays are geodesics in a certain Finsler geometry. So the authors arrive at a seismic Finsler geometry.
scientific article; zbMATH DE number 2001950
scientific article