Minimizing p-harmonic maps into spheres.

d m fif Qf where |V/| = £ Σ γ -~-^-, and where ya (x) = (/^(x))" represents the metric i = l α,0 = 1 ^Χα νβ of M. In a fundamental paper ([SU 1]), Schoen and Uhlenbeck showed that near any singularity, a minimizing harmonic map /: M —·> N converges strongly to a minimizing tangent map u: M —»JV", which is harmonic and homogeneous of degree zero. The investigation of minimizing tangent maps u: B —+ N is therefore an important aspect of current research into minimizing harmonic maps.