D O C U M E N T 3 4 M A Y 1 9 2 3 3 7
ing ) g should be substituted by and by For, from
follows from the
expression
there follows, because the trace of the Maxwellian tensor = 0, that the determinant
on the right-hand side is .—If I now change the designations, and I now
designate your as , and interpret as the old Riemannian tensor, and the
right-hand side of the equation as the energy tensor, then there
is
= Maxw[ell]ian energy tensor. The agreement is striking. But in your case it is
only valid if is weak compared to the cosmological , in my case it is so in
general. And I have the factor α, to which I can give the correct sign!
Best regards, your
Weyl.
34. To Maurice Solovine[1]
[Berlin,] Pentecost. [20 May] 1923
Dear Solovine,
It was wonderful in Japan. Fine style of life, lively interest in everything, artisti-
cally inclined, intellectual naiveté with good intellect—a refined people in a pictur-
esque country. Our tribal brothers in Palestine appealed to me very much, as farm-
ers, as laborers, and as citizens. The land is, on the whole, hardly fertile. It will
in your case: in my case:
ε4
s skl =
ϕik siαskβϕαβ.
#kl skl s = #kl s2 skl = s2
1
s
-- - s = = g]kα#αl [ gs; =
gkα#αl g( δk l Maxw.) + =
g2
f =
skl gkl Rkl
Rkl
1
2
--gklR - Tkl =
ik 6ϕk = ik
3
α
---ϕk –=
Tk gkl Skl –= Tkl gkl αSkl +=
6ϕkϕl 3gkl( ϕαϕα) –+ 6ϕkϕl 3gkl( ϕαϕα). –+
Skl
Skl gkl
Previous Page Next Page