%0 Journal Article %T Spinorially twisted Spin structures, I: curvature identities and eigenvalue estimates %A Malors Espinosa %A Rafael Herrera %J Mathematics %D 2014 %I arXiv %X We define (higher rank) spinorially twisted spin structures and deduce various curvature identites as well as estimates for the eigenvalues of the corresponding twisted Dirac operators. %U http://arxiv.org/abs/1409.6246v2