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<
title>Atlas of Brauer Characters -- Corrections</
title>
<
font color=
"#AF0000"><
h1 align=
"center">Corrections to the
A<
small>TLAS</
small> of Brauer Chara
cters</h1></font>
<div class="p"><!----></div>
<br /><br /> <body bgcolor="FFFFFF">
<div class="p"><!----></div>
This is the list of known errors in the A<font size="-2">TLAS</font> of Brauer Characters.
<div class="p"><!----></div>
We denote mathematical errors by ***.
We use C to denote improvements concerning grammar or
notational consistency.
Changes are shown in order of appearance.
<div class="p"><!----></div>
<br /><br /><b>Introduction</b>
<div class="p"><!----></div>
<br /><br />
<table>
<tr><td valign="top" align="right">***</td><td valign="top"> p.</td><td valign="top" align="right"> xi</td><td valign="top"> : </td><td valign="top">
<td valign="top"><table border="0"><tr><td valign="top"></td><td width="558">
Replace the last paragraph of Section 10 by the following.
<div class="p"><!----></div>
If the indicator is 0, then D(G) may or may not embed in a suitable unitary
group. Let *q be the map on the Brauer characters induced by the
field automorphism x 8594; x<sup>q</sup>.
Then D is unitary if and only if D(G) is defined over a field
with q<sup>2</sup> elements and 966;<sup>*q</sup> is the complex conjugate
of 966;.
</td></tr></table><!--vbox-->
</td><td valign="top"></td></tr></td></tr></table><!--hboxt--></table>
<div class="p"><!----></div>
<br /><br /><b>The Tables</b>
<div class="p"><!----></div>
<br /><br />
<table>
<tr><td valign="top" align="right">***</td><td valign="top"> p.</td><td valign="top" align="right"> 22</td><td valign="top"> L<sub>3</sub>(3)</td><td valign="top"> : </td><td valign="top">
<td valign="top"><table border="0"><tr><td valign="top"></td><td width="558">
In the 13 modular table, change 12A 12A
to 12A 8727;.
</td></tr></table><!--vbox-->
</td><td valign="top"></td></tr>
<tr><td valign="top" align="right">***</td><td valign="top"> p.</td><td valign="top" align="right"> 30-32</td><td valign="top"> L<sub>2</sub>(25)</td><td valign="top"> : </td><td valign="top">
</td><td valign="top"><table border="0"><tr><td valign="top"></td><td width="558">
Change element orders of 4C, 12C, 12D
in 4.G.2<sub>3</sub> to 4, 12, 12.
</td></tr></table><!--vbox-->
</td><td valign="top"></td></tr>
<tr><td valign="top" align="right">***</td><td valign="top"> p.</td><td valign="top" align="right"> 71-73</td><td valign="top"> U<sub>3</sub>(4)</td><td valign="top"> : </td><td valign="top">
</td><td valign="top"><table border="0"><tr><td valign="top"></td><td width="558">
Change class names 10A-B in G.2
to 10E-F.
</td></tr></table><!--vbox-->
</td><td valign="top"></td></tr>
<tr><td valign="top" align="right">***</td><td valign="top"> p.</td><td valign="top" align="right"> 79-81</td><td valign="top"> U<sub>3</sub>(5)</td><td valign="top"> : </td><td valign="top">
</td><td valign="top"><table border="0"><tr><td valign="top"></td><td width="558">
In G.2, change 6C to 6D and 8B
to 8C where applicable.
</td></tr></table><!--vbox-->
</td><td valign="top"></td></tr>
<tr><td valign="top" align="right">***</td><td valign="top"> p.</td><td valign="top" align="right"> 108</td><td valign="top"> S<sub>4</sub>(4)</td><td valign="top"> : </td><td valign="top">
</td><td valign="top"><table border="0"><tr><td valign="top"></td><td width="558">
In G.4, insert fusion signs joining characters 3 and
4, 6 and 7, 9 to 12, 13 and 14.
</td></tr></table><!--vbox-->
</td><td valign="top"></td></tr>
<tr><td valign="top" align="right">***</td><td valign="top"> p.</td><td valign="top" align="right"> 118</td><td valign="top"> L<sub>3</sub>(7)</td><td valign="top"> : </td><td valign="top">
</td><td valign="top"><table border="0"><tr><td valign="top"></td><td width="558">
Change D8727;40 to D8727;tyle='color: green'>8727;5.
</td></tr></table><!--vbox-->
</td><td valign="top"></td></tr>
<tr><td valign="top" align="right">***</td><td valign="top"> p.</td><td valign="top" align="right"> 130-139</td><td valign="top"> U<sub>4</sub>(3)</td><td valign="top"> : </td><td valign="top">
</td><td valign="top"><table border="0"><tr><td valign="top"></td><td width="558">
Change class name 12J in G.2<sub>3</sub> to 12K.
</td></tr></table><!--vbox-->
</td><td valign="top"></td></tr>
<tr><td valign="top" align="right">C</td><td valign="top"> p.</td><td valign="top" align="right"> 170</td><td valign="top"> L<sub>4</sub>(3)</td><td valign="top"> : </td><td valign="top">
</td><td valign="top"><table border="0"><tr><td valign="top"></td><td width="558">
Swap the two fusion markers for 966;<sub>27</sub>-966;<sub>30</sub>
in 2.G.2<sub>1</sub>.
</td></tr></table><!--vbox-->
</td><td valign="top"></td></tr>
<tr><td valign="top" align="right">C</td><td valign="top"> p.</td><td valign="top" align="right"> 181</td><td valign="top"> U<sub>5</sub>(2)</td><td valign="top"> : </td><td valign="top">
</td><td valign="top"><table border="0"><tr><td valign="top"></td><td width="558">
Change chis to phis.
</td></tr></table><!--vbox-->
</td><td valign="top"></td></tr>
<tr><td valign="top" align="right">C</td><td valign="top"> p.</td><td valign="top" align="right"> 186</td><td valign="top"> L<sub>3</sub>(8)</td><td valign="top"> : </td><td valign="top">
</td><td valign="top"><table border="0"><tr><td valign="top"></td><td width="558">
Rewrite y8242;638727;le='color: green'>8727;8722; z218727;10&17 to
y8242;638727;8727;+ z7. (Both expressions are equal.)
</td></tr></table><!--vbox-->
</td><td valign="top"></td></tr>
<tr><td valign="top" align="right">***</td><td valign="top"> </td><td valign="top" align="right"> </td><td valign="top"> </td><td valign="top"> </td><td valign="top">
</td><td valign="top"><table border="0"><tr><td valign="top"></td><td width="558">
In the third and fourth degree 511 rows of the 73 modular table,
exchange the indicators 176;6 and >176;2 in G.3.
</td></tr></table><!--vbox-->
</td><td valign="top"></td></tr>
<tr><td valign="top" align="right">***</td><td valign="top"> p.</td><td valign="top" align="right"> 204-205</td><td valign="top"> L<sub>3</sub>(9)</td><td valign="top"> : </td><td valign="top">
</td><td valign="top"><table border="0"><tr><td valign="top"></td><td width="558">
In the 7 modular table of G.2<sub>1</sub>, change the
indicator of the second degree 910 character from ++ to ++2.
In the 13 modular table of G.2<sub>3</sub>, change the indicator of the second
degree 91 character from 176;176; to 176;176;2.
</td></tr></table><!--vbox-->
</td><td valign="top"></td></tr>
<tr><td valign="top" align="right">***</td><td valign="top"> p.</td><td valign="top" align="right"> 206</td><td valign="top"> U<sub>3</sub>(9)</td><td valign="top"> : </td><td valign="top">
</td><td valign="top"><table border="0"><tr><td valign="top"></td><td width="558">
Change the value of the first degree 584 character
on the class 5EF from 8727; to 2+b58727;.
</td></tr></table><!--vbox-->
</td><td valign="top"></td></tr>
<tr><td valign="top" align="right">***</td><td valign="top"> p.</td><td valign="top" align="right"> 219</td><td valign="top"> J<sub>3</sub></td><td valign="top"> : </td><td valign="top">
</td><td valign="top"><table border="0"><tr><td valign="top"></td><td width="558">
Swap the character values in G and 3.G on the classes
17A and 17B, and the character values in G.2 on the classes
34A and 34B.
</td></tr></table><!--vbox-->
</td><td valign="top"></td></tr></td></tr></table><!--hboxt--></table>
<div class="p"><!----></div>
<br /><br /><b>Appendix 1</b>
<div class="p"><!----></div>
<br /><br />
<table>
<tr><td valign="top" align="right">C</td><td valign="top"> p.</td><td valign="top" align="right"> 284</td><td valign="top"> : </td><td valign="top">
<td valign="top"><table border="0"><tr><td valign="top"></td><td width="558">
Add the entry w418727;3 124; X<sup>3</sup> + X<sup>2</sup> + X 124; C<sub>5</sub>.
</td></tr></table><!--vbox-->
</td><td valign="top"></td></tr>
<tr><td valign="top" align="right">***</td><td valign="top"> p.</td><td valign="top" align="right"> 286</td><td valign="top"> : </td><td valign="top">
</td><td valign="top"><table border="0"><tr><td valign="top"></td><td width="558">
The entries for b29 and b298727; must be as follows.
b29 124; X + 2 124; C<sub>2</sub>, b29pan style='color: green'>8727;124; 2 X 124; C<sub>2</sub>.
</td></tr></table><!--vbox-->
</td><td valign="top"></td></tr>
<tr><td valign="top" align="right">***</td><td valign="top"> p.</td><td valign="top" align="right"> 288</td><td valign="top"> : </td><td valign="top">
</td><td valign="top"><table border="0"><tr><td valign="top"></td><td width="558">
Replace y98727;8727; by y9style='color: green'>8727;2.
</td></tr></table><!--vbox-->
</td><td valign="top"></td></tr></td></tr></table><!--hboxt--></table>
<div class="p"><!----></div>
<br /><br /><b>Appendix 2</b>
<div class="p"><!----></div>
<br /><br />
<table>
<tr><td valign="top" align="right">C</td><td valign="top"> p.</td><td valign="top" align="right"> 300</td><td valign="top"> : </td><td valign="top">
<td valign="top"><table border="0"><tr><td valign="top"></td><td width="558">
Remove the last change for U<sub>3</sub>(8), which suggests to add a note
to the map. Note that the isoclines of 3.G.3<sub>1</sub> are in fact isomorphic.
</td></tr></table><!--vbox-->
</td><td valign="top"></td></tr></td></tr></table><!--hboxt--></table>
<div class="p"><!----></div>
<br /><br />The number of changes of each type is as follows:
14 ***
5 C.
<div class="p"><!----></div>
<br /> File created on 18 April 2000<br>
Last modified: 17 October 2024 by
<a href="mailto:sam@math.rwth-aachen.de">Thomas Breuer</a>
<div class="p"><!----></div>
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