1904]
NOTES AND ERRATA : VOLUMES 1, 3, 4, 5
P. 375.
551
A better notation for the set 2,. is £fc9, where 0 = yk — c2,
so that both subscripts
P. 376, 1. 20.
ave now invariant.
For y_1 read (pi" — l)¡(p
— 1 )•
The same correction
should be made five times in the theorem on p. 377.
H. A. Merrill
P. 432, 1. 8 up.
of differential
equations.
For . read , in which A , B and C are independent of X.
S. Epsteen,
Pp. 437-444.
: On solutions
Semireducible
hxjpercomp>lex number systems.
I desire to point out the relation of
are semireducible of the first kind to the
ursprüngliche)
system of Molien
in
A nil ale n, vol. 41.
This can be done
the systems which
imprimitive (nichtMathematische
best by means of
the following table (cf. the table of vol. 3, p. 442).—S. E.
Conditions
Name of
on Num-
ber System.
A1,A2,C1,C2
(Transactions,
vol. 3,
Group.
System.
Semi-reduci-
G is reducible,
ble of the
first kind.
pp. 440, 442). j
A2, (71, (72 | Imprimitive.
Gxx is the
group of Ex, G22 is not
!
necessarily
the group
of
E..
G is reducible,
(Mathematische
Annalen,
vol. 41,
Gxx is the
group of the accompanying
system
(not
neces-
sarily Ex) and (72, is not
necessarily the group of
pp. 9-23).
E2.
Volume
5
L. E. Dickson
P. 2, 1. 12.
: The subgroups
of order a power of 2
In n2>s replace 13 by 13s.
L. E. Dickson:
P. 166,7 1.13.
For
E. W. Brown
Determination
EL,
212
of all the subgroups
read
: On the smaller perturbations
P. 284, 1. 7 up. For sin V" + V - 2/7)
1. 4 up.
P. 285, 1. 2.
II„,.
210
read sin ( V" + V - 2/7).
« a' a" ( V" + V - 2/7 )
"
a' a" cos ( V" + V — 2/7 ).
"
«
D-\
D-"
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