On Relative Deformation And Vorticity In Relativistic Kinematics
N. S. Sinyukov [5] introduced the concept of an almost geodesic mapping of a space with an affine connection without torsion onto and found three types: , and . The authors of [1] proved completness of that classification for .By definition, special types of mappings are characterized by equations where is the deformation tensor of affine connections of the spaces and .In this paper geometric objects which preserve these mappings are found and also closed classes of such spaces...