%0 Journal Article %T Computation of 2-groups of positive classes of exceptional number fields %A Jean-Fran£żois Jaulent %A Sebastian Pauli %A Michael Pohst %A Florence Soriano-Gafiuk %J Mathematics %D 2008 %I arXiv %X We present an algorithm for computing the 2-group of the positive divisor classes of a number field F in case F has exceptional dyadic places. As an application, we compute the 2-rank of the wild kernel WK2(F) in K2(F) for such number fields. %U http://arxiv.org/abs/0801.1367v1