Push-forwards for Witt groups of schemes
  We define push-forwards for Witt groups of schemes along proper morphisms, using Grothendieck duality theory. This article is an application of results of the authors on tensor-triangulated closed categories to such structures on some derived categories of schemes together with classical derived functors. 
Baptiste Calm\`es (University of Cambridge), Jens Hornbostel   (Universit\"at Bonn)