Computation of 2-groups of positive classes of exceptional number fields
  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. 
Jean-Fran\c{c}ois Jaulent (IMB), Sebastian Pauli (DMS), Michael Pohst,   Florence Soriano-Gafiuk (LMAM)