<?xml version="1.0" encoding="utf-8"?>
<rss version="2.0" xml:base="http://openproblemgarden.org" xmlns:dc="http://purl.org/dc/elements/1.1/">
<channel>
 <title>Open Problem Garden - Universal Steiner triple systems - Comments</title>
 <link>http://openproblemgarden.org/op/universal_steiner_triple_systems</link>
 <description>Comments for &quot;Universal Steiner triple systems&quot;</description>
 <language>en</language>
<item>
 <title>Universal Steiner triple systems</title>
 <link>http://openproblemgarden.org/op/universal_steiner_triple_systems</link>
 <description>&lt;table cellspacing=&quot;10&quot;&gt;
&lt;tr&gt;
  &lt;td&gt;
    Author(s):
        &lt;a href=&quot;/category/grannell_mike&quot;&gt;Grannell&lt;/a&gt;; &lt;a href=&quot;/category/griggs_terry&quot;&gt;Griggs&lt;/a&gt;; &lt;a href=&quot;/category/knor_martin&quot;&gt;Knor&lt;/a&gt;; &lt;a href=&quot;/category/skoviera_martin&quot;&gt;Skoviera&lt;/a&gt;&amp;nbsp;&amp;nbsp;
  &lt;/td&gt;
  &lt;td align=right&gt;
    Subject:
        &lt;a href=&quot;/category/graph_theory&quot;&gt;Graph Theory&lt;/a&gt; » &lt;a href=&quot;/category/coloring&quot;&gt;Coloring&lt;/a&gt; » &lt;a href=&quot;/category/edge_coloring&quot;&gt;Edge coloring&lt;/a&gt;&amp;nbsp;&amp;nbsp;
  &lt;/td&gt;
&lt;/tr&gt;

&lt;tr&gt;
  &lt;td colspan=2&gt;
    &lt;table border=1 cellspacing=&quot;5&quot;&gt;
      &lt;tr&gt;&lt;td&gt;
        &lt;div class=&quot;envtheorem&quot;&gt;&lt;b&gt;Problem&lt;/b&gt;&amp;nbsp;&amp;nbsp; Which &lt;a href=&quot;http://mathworld.wolfram.com/SteinerTripleSystem.html&quot;&gt;Steiner triple systems&lt;/a&gt;  are universal? &lt;/div&gt;

      &lt;/tr&gt;&lt;/td&gt;
    &lt;/table&gt;
  &lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;</description>
 <category domain="http://openproblemgarden.org/category/grannell_mike">Grannell, Mike</category>
 <category domain="http://openproblemgarden.org/category/griggs_terry">Griggs, Terry</category>
 <category domain="http://openproblemgarden.org/category/knor_martin">Knor,  Martin</category>
 <category domain="http://openproblemgarden.org/category/skoviera_martin">Skoviera, Martin</category>
 <category domain="http://openproblemgarden.org/category/cubic_graph">cubic graph</category>
 <category domain="http://openproblemgarden.org/category/steiner_triple_system">Steiner triple system</category>
 <category domain="http://openproblemgarden.org/category/graph_theory">Graph Theory</category>
 <category domain="http://openproblemgarden.org/category/coloring">Coloring</category>
 <category domain="http://openproblemgarden.org/category/edge_coloring">Edge coloring</category>
 <comments>http://openproblemgarden.org/op/universal_steiner_triple_systems#comment</comments>
 <pubDate>Fri, 05 Oct 2007 14:51:54 +0200</pubDate>
 <dc:creator>macajova</dc:creator>
 <guid isPermaLink="false">624 at http://openproblemgarden.org</guid>
</item>
</channel>
</rss>
