224
DOC.
21
GENERAL RELATIVITY
Published
in Königlich Preußische
Akademie der
Wissenschaften (Berlin). Sitzungsberichte
(1915):
778-786. Submitted 4 November
1915,
published
11
November
1915.
[1]For historical
background,
see
Vol.
4,
the editorial
notes,
"Einstein
on
Gravitation
and
Relativity:
The
Static
Field,"
pp.
122-128; "Einstein
on
Gravitation and
Relativity:
The Col-
laboration with Marcel
Grossmann," pp. 294-301;
the Introduction
to
this
volume;
Stachel
1989;
and Earman and
Glymour 1978a,
1978b. See
in
particular
Norton
1984,
sec.
8,
for
a
detailed discussion of this
paper
and its
sequels,
Einstein
1915g
(Doc. 22)
and
Einstein 1915i
(Doc. 25).
[2]Einstein
1914o
(Doc.
9).
[3]The
invariance
properties
of
H and the
relation
between
eqs.
(77)
and
(78)
of Einstein
1914o
(Doc.
9) are
discussed
in
more
detail
in
Einstein
to
H. A. Lorentz, 12
October
1915. See
also Einstein 1914o
(Doc. 9), notes 36
and
42,
for
more
background.
[4]In
eqs.
(13a)
and
(13b)
a
summation
over
l
is
implied on
the
right-hand sides; in
eq.
(13b)
the second
term
should
be
summed
over
p
as
well.
[5]See Einstein
1915g
(Doc. 22)
for
a
retraction of
this statement
and
a
modified discussion.
[6]Not
long
before
writing
this
paper,
Einstein had
realized
that the
version
of the
general
theory
of
relativity published
in
Einstein 1914o
(Doc.
9)
was
not
covariant under rotations
(see
Einstein
to
Erwin
Freundlich,
30
September
1915).
Einstein later credited this
insight
as one
of the
key steps
toward his revision of the
theory
(see
Einstein
to
Arnold
Sommerfeld, 28
November
1915,
and Einstein
to
H. A. Lorentz,
1
January
1916).