In 1994 Prof.Alcubierre presented a warp drive space-time making faster than c travel possible within the framework of general relativity. At the link we present a new alternate warp drive space-time. <A HREF="http://home.beseen.com/technology/zephcochrane/alternatewarp.htm">Alternate Warp Drive</A>

Dont get such advanced maths but making shorter these discouraging limits of distance to the stars sounds fine to me...
If proven right it may worth a Nobel prize...