Biharmonic tori in spheres
  We consider proper-biharmonic flat tori with constant mean curvature (CMC) in spheres and find necessary and sufficient conditions for certain rectangular tori and square tori to admit full CMC proper-biharmonic immersions in $\mathbb{S}^n$, as well as the explicit expressions of some of these immersions. 
Dorel Fetcu, Eric Loubeau, and Cezar Oniciuc
math.DG