10-Dim Einstein spaces made up on basis of 6-Dim Ricci-flat spaces and   4-Dim Einstein spaces
  Some examples of ten-dimensional vacuum Einstein spaces made up on basis of four-dimensional Ricci-flat spaces and six-dimensional Ricci-flat spaces defined by solutions of the Sin-Gordon equation are constructed. The properties of geodesics for such type of the spaces are discussed 
Valery Dryuma