%0 Journal Article %T Symmetry classes of tensors associated with the Semi-Dihedral groups %A Mahdi Hormozi %A Kijti Rodtes %J Mathematics %D 2012 %I arXiv %R 10.4064/cm131-1-6 %X We discuss the existence of an orthogonal basis consisting of decomposable vectors for some symmetry classes of tensors associated with Semi-Dihedral groups $SD_{8n}$. The dimensions of these symmetry classes of tensors are also computed. %U http://arxiv.org/abs/1202.3972v2