--pdp dLo]_1 d(p2+1) LUOI -+1 D+1 C= p t 2. L[!J, "+tUn '+(t-n)Jn]=0 L[t +lt+Ltn-nL=0 4rf()=(-“L[f[ ] 1 [ ] 2 0 0 + = − p pdp J d J LL 1 ( 1 ) 21 [ ] [ ] 2 2 0 0 ++ = − p d p J d J LL 1 [ ] 2 0 + = pC L J 2. [ '' ' ( ) ] 0 2 2 2 L t J n +t Jn + t − n J n = C=? [ ''] [ '] [ ] [ ] 0 2 2 2 L t J n + L t Jn + L t J n − n L J n = . [ ( )] [ ( )] ( 1 ) n n n n dp d f t t f t L L = −