Perturbation Theory and Its Limitations in the Higgs Sector of the SM
  This lecture reviews various Higgs-sector amplitudes which have been calculated to two loops in the Higgs quartic coupling. After explaining the framework of these calculatins, the perturbative behaviour of the amplitudes is discussed, and perturbative upper bounds on the Higgs boson mass are given. 
Kurt Riesselmann (Techn. Univ. Munich)