根据特勒根定理2有: ∧ u111+u,12+ ∑uik=0 ul1+u212 ∑ uklk 0 k=3 =R kk uk k lk u111+u,12+ ∑R k=3 kk ik=o u111tu2 2 +∑ Rklklk=0 k=3 ∧ u111+u212=u11,+u212 uc u 0 0 u2=us s =uS S 即: s us根据特勒根定理2有： u i u i R i i 0 b k 3 k k k 2 2 1 1        u i u i R i i 0 b k 3 k k 2 k 2 1 1        而： k k k u  R i k k uk R i    u i u i u i 0 b k 3 k k 2 2 1 1        u i u i u i 0 b k 3 k k 2 2 1 1        2 2 1 2 1 2 1 1 u i u i u i u i        1 2 S 1 S 2 u u u 0 u 0 u u        2 1 S S u i u i    即： S 1 S 2 u i u i     1 2 S S i i u u    