DOCS.
223,
224
MAY-JUNE
1916 217
Vgel
can
be ordered
according
to
pa
and derivatives
paB.
Then results
Vs«'
=
E^p“
+
E
Q
aß
where
the
AAa’s
and
BABa's
are no
longer dependent
on
vector
p.
If
I
substitute
this
in
the
above
equation,
I
can
then
write out
Ealda/dwlpa+EaBt=0
If this
equation
should be valid for
any
selection of
pa,
the
BalB's
must first vanish
owing
to
the
independence
of the
paBl's.
Because of
the
independence
of
the
Paß's,
the
individual
Ala’s
must
then
also
vanish,
however,
which would rob
the
theorem
of
its
sense.
How is
this cleared
up?
It
would
suffice,
of
course,
if
you
would
charge
Miss
Noether with
explaining
this to
me.[13]
Cordial
greetings
to
you
and
Mrs.
Hilbert, yours,
A. Einstein.
224. To
David Hilbert
[Berlin,]
2
June
1916
Dear
Colleague,
Your
new
explanation
has
dispelled my
doubts
on
this point
as
well.[1]
I
really
had
failed to notice
that
paBl
=
palß.
Thus
an
equation
in the form
Edav
=
0
remains,
which describes
precisely
the
conservation
law
in
common
form,
while
the other
two
relations
just
define
the
BlBa's,
which
are uninteresting
of
themselves,
as
it
seems.
Now
your
entire
fine
analysis
is clear to
me,
also with
respect
to
the
heuristics.
Our
results
are
in
complete agreement.
Unfortunately I
cannot
come
to
Göttingen
now.
However,
I
shall
try
to
break
myself
loose at
the
end of
July.
What
I appreciate
long
after
every
discussion
with
you
is
the
far-reaching
concurrence
of
our
views
and convictions.
Thanking
you
heartily
for
the
kind
explanations,
I
am
with best
regards,
yours,
A.
Einstein.