882 
da: 
oder: 
y(T ra © + Dï„u,+@ m æ +s„^)* = o, 
khj 
4ti 
k , I ( 6' ©, + u' U, + to' 33, + lu' 333,) dt — 
e ± J' | ; (0' cos [vx — {)to' cos (vy) — u' cos (vz)} ) 
Ol) 
I4/AA/AI+-A 
i i 
kJ'6' ©, + u' 11; + to' 3*. + ID' 233;) dt, 
also: 
(112) (k — k,) J’i'6' ©, + ii' U, + to' 95, + io' 35?,) d% = 0. 
Ist I j das kleinste | À [, so ist, wenn wir die Potentialfunktionen 
u'j v'j w'j (j = 0 , 1, 2 ...) durch die Gleichungen : 
u o - I \ m , 
v'o = s m , 
(113) 
w 
. 1 \ 9 r dx 9 r dx\ 
+2n 
/■ 
t 0 i - 1 T~di /Ui - X - 1 ’ 
1 ( 9 r t dx 9 r t dx\ 
/ / - 1 \ 0 r . dx d r , 
V > = - V ^ + 2Ï \Tzr - ^ J n -71’ 
= — W 
definieren: 
_|_ ill /1/. /*„/ *1 
1 l '2n\ 9xJ 1 1 r 9yJ 
— r I’ 
an cu. 
(114) 
(' = + /I«'; + 1*U\ + . . . = U — ZJ. 
v' - »'(I -j- ^ ®'t -f" ®*3 “I“ ' • • - V - ^ 
C,*, y 
l—Â ” 
-}— / w\ —|- /’ 2 —{“ • • • w 'V') -- - J j 11) 
W = W/ 
lil 
