http://openproblemgarden.org/category/flows Comments for "Nowhere-zero flows" en http://openproblemgarden.org/category/flows <p>Open problems about <a href="http://en.wikipedia.org/wiki/Nowhere-zero flows">Nowhere-zero flows</a> (not to be confused with <a href="http://en.wikipedia.org/wiki/Flow_network">Network flows</a>). <hr><br> </p> http://openproblemgarden.org/category/flows#comment Tue, 06 Mar 2007 19:45:38 +0100 rs 124 at http://openproblemgarden.org