This paper gives pairs of explicit hypersurfaces $(S_1, S_2)$ of each complex projective space $\boldsymbol{P}$ for which holds an analogue of Yi's uniqueness theorem [Y]: two linearly non-degenerate holomorphic mappings $f, g\colon \boldsymbol{C} \to \boldsymbol{P}$ are equal if $f^{-1}(S_j) = g^{-1}(S_j)$ ($j = 1, 2$) as divisors.

The infinitesimal reduced variation of the stochastic parallel displacement on the commutative principal bundle is martingale if and only if the connections satisfy the Maxwell equations.