%0 Journal Article %T Moving curves and Seshadri constants %A Andreas Leopold Knutsen %A Wioletta Syzdek %A Tomasz Szemberg %J Mathematics %D 2008 %I arXiv %X We study families of curves covering a projective surface and give lower bounds on the self-intersection of the members of such families, improving results of Ein-Lazarsfeld and Xu. We apply the obtained inequalities to get new insights on Seshadri constants and geometry of surfaces. %U http://arxiv.org/abs/0809.2160v1