%0 Journal Article %T LEFT-INVARIANT ALMOST PARA-COMPLEX EINSTEINIAN STRUCTURES ON SIX-DIMENSIONAL NILPOTENT LIE GROUPS %A Smolentsev, N.K. %K Nilmanifolds, six-dimensional nilpotent Lie algebras left-invariant para-complex structures, Einstein manifolds, half-flat structures %J Science Evolution %D 2017 %N 2 %P 7 %I Kemerovo State University