%0 Journal Article %T On operations and characteristic classes %A Helge Maakestad %J Mathematics %D 2007 %I arXiv %X In this paper exterior products are used to define operations and characteristic classes with values in the K-theory of an abelian category with tensor and exterior products. We apply the general construction to define Chern and Segre classes with values in algebraic K-theory and the K-theory of connections. %U http://arxiv.org/abs/0712.1128v15