%0 Journal Article %T A Variational Barban-Davenport-Halberstam Theorem %A Allison Lewko %A Mark Lewko %J Mathematics %D 2011 %I arXiv %X We prove variational forms of the Barban-Davenport-Halberstam Theorem and the large sieve inequality. We apply our result to prove an estimate for the sum of the squares of prime differences, averaged over arithmetic progressions. %U http://arxiv.org/abs/1111.6190v2