Five-Dimensional Contact CR-Submanifolds in S 7 ( 1 )
Let P and Q be the orthogonal projections from T ( M ) to D , respectively to D ⊥ . From Proposition 2 we write the expression of the Levi-Civita connection on M for the case a 1 = a 3 = A : ∇ E 1 E 1 = p E 2 , ∇ E 1 E 2 = − p E 1 − ξ , ∇...