H3BO3-C6H12N4-H2O SYSTEM AT 30-DEGREES-CH3BO3-C6
H12N4-
H2O SYSTEM AT 30-DEGREES-C
Lie Algebras of Projective Motions of Five-Dimensional H-Spaces H221 of Type {221}We study five-dimensional pseudo-Riemannian
h-spaces $
H_{221}$ of type $\{221\}$.Necessary