Erdős space [SEP] named after
Erdős space
In mathematics, Erdős space is a topological space named after Paul Erdős. Erdős space is defined as the set "E" of points in the Hilbert space ℓ of square summable sequences having all coordinates rational. 
Erdős space is a totally disconnected, one-dimensional topological space. The space "E" is homeomorphic to the direct product "E"×"E". Endowed with the compact-open topology, the set of all homeomorphisms of the Euclidean space R leaving the set Q of vectors with rational coordinates invariant
Clara would remain among DCI's top three corps for the organization's first eight years, winning the DCI World Championship in Whitewater in 1973, in Ithaca, New York in 1974, and in Denver in 1978. SCV would close out the Seventies by falling to seventh place in Birmingham, Alabama in 1980 with a totally asymmetrical drill that was probably slightly ahead of its time. The corps' dominance was partly due to superb drumming, partly due to innovative drill, but largely due to a strong, supportive organization.