108 



E. D'OVIDIO 



{ahf {hlcf {kk'f a,' bj = {aAf {b^faj hj 



'2' 2 9 3 



+ ~,BH 



2- 9-'+3'^ + 3^^' 





^U.-|.A-1^.^--Ì 



15^^+3^^' 



{P,l>)2={c^k? {Wcijp.'- \ Ip = (aAf (&A)^a..^ b/- pp + l 



lp + -BH 



= \fn-\l^-\Ak^-lll, + \BH . 



3 3 2 



8° {h,p)^ = {alif {aJc'f k'J - ^ {Jc, l), = m - ^ m = -m . 



9° (aìcf {bkf [b h'f a,' b/ JcJ = {p, p), + ^ Ip 



=.{aAf{hAfa,H.,'-\lp + \BH 



^lf,,,^l,^,\An^^\lp + \BH, 



3 

 {a7c)~ (ap)^ ttjc' JcJ pj^ = (ak)' {a]c')~ {bk')'^ a J b^^ hj — z^P 



= iaAr'{bAy'aJbJ-^^^ip + lBH 



= lOn-lkA-lAJ^^^lp-^lBH. 



10" {apnkp)WkJ'pJ=\ \{apfkj + {kpfaj-{akfp/ \XW 



