%0 Journal Article %T Characterization of the Sequential Product on Quantum Effects %A Stan Gudder %A Frederic Latremoliere %J Mathematics %D 2008 %I arXiv %R 10.1063/1.2904475 %X We present a characterization of the standard sequential product of quantum effects. The characterization is in term of algebraic, continuity and duality conditions that can be physically motivated. %U http://arxiv.org/abs/0803.3867v1