  We consider and discretize a mixed formulation for linear elasticity with
weakly imposed symmetry in two and three dimensions. Whereas existing methods
mainly deal with simplicial or polygonal meshes, we take advantage of
isogeometric analysis (IGA) and consequently allow for shapes with curved
boundaries. To introduce the discrete spaces we use isogeometric discrete
differential forms defined by proper B-spline spaces. For the proposed schemes
a proof of well-posedness and an error estimate are given. Further we discuss
our ansatz by means of different numerical examples.
