DOC. 487 MARCH
1918 507
[18]Comments in
draft:
“I
find
it
very
remarkable
that
at
the
end of his
lect[ures]
of
1916
Lorentz stated
he
was
satisfied
with
postulating
in addition to
field equations
(a)
a
double
energy
current,
the
two
components
of which
constantly compensate
each
other.”
...
“It contains
precisely
the
agreement
of
the
grav.
mass
and inertial
mass
to
which
you
assign so
much
weight.”
[23]Draft postscript:
“P.S. “On
Cosmology.”
Previously
already,
and
not
spherical space
but
elliptical.
Case of Schwarzschild’s
sphere
for
Xa
=
n/2
4-dimensional
space
with
constant curvature
kp0/3.
Hence R
=
\3/kp0,
whereas
you indicate /2/kp0.
P
=
-P0 Scheme
-p
0
0
0
0
-p
0
0
0 0
-P 0
0 0 0 -P
, which
does not
agree
with
Schrödin-
ger either. Mass
content
ir2R3p0.
The
Kvv's
all
become, according
to
Runge’s
letter,
=
-Kp0
which
agrees
with
the
premise
Kvo
+
k
.
Tav
=
0.
That is
why
Kuv
=
-k
.
p0guv.
Thus
I find Einstein’s
A
=
Kp0,
while E. himself has
kp0/2.
So
I
am
quite
close to
Einstein,
but the
numerical
coeffs.
do not
agree.
(Schw[arzschild]
must have
calculated
correctly,
after
all:
Fréedericksz
and
Runge
have checked him
independently.)”
[25]Draft
text: “In
particular,
another
“travel
copy”
has been made. Prof.
Conrad
Müller, Hanover, my
longtime
collaborator
at
the
Math.
Encyclopedia,
has
taken it
for
a
while
and
will send it
on
to
you
around Eastertime.”
[26]Draft
passage:
“What
I
say
about
Riemann,
Beltrami,
and
Lipschitz
will
prob-
ably
be
applauded
by you
right
away;
it
appears
to
me
that
at
the
t[ime]
Grossmann
had
given you
too one-sided
instructions
from
the
point
of view of
the
more
limited
Christoffel
School. On
the other
hand,
you may
find
some
objection
when I
consider
some
of
what
you
aim at
with
your
relativistic
conception
as
long
since
contained
in
Lagrange’s equations.
For
this
you
must not look at
me as a
one-sided
formalistically
inclined
mathematician but rather
as a man
who in his
life
development
was
led
over
by
chance to
the math.
side
and
is
now
trying
to
demonstrate the
knowledge
that
he
has
gained
there
also
with
regard
to
its
significance
for
neighboring disciplines.”
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