The effective gravitational interaction below the Planck scale in the
Randall-Sundrum world is shown to be the Gauss-Bonnet term. In this theory we
find that there exists another static solution with a positive bulk
cosmological constant. Also, there exist solutions for positive visible sector
cosmological constant, which are needed for a later Friedman-Robertson-Walker
universe.Comment: 10 pages, including 1 eps figur