%0 Journal Article %T Best rank one approximation of real symmetric tensors can be chosen symmetric %A Shmuel Friedland %J Mathematics %D 2011 %I arXiv %X We show that a best rank one approximation to a real symmetric tensor, which in principle can be nonsymmetric, can be chosen symmetric. Furthermore, a symmetric best rank one approximation to a symmetric tensor is unique if the tensor does not lie on a certain real algebraic variety. %U http://arxiv.org/abs/1110.5689v3