“…The Pin and Spin groups (Clifford-Lipschitz groups) widely used in algebraic topology [12,44,4,49,50,51], in the definition of pinor and spinor structures on the riemannian manifolds [59,41,47,82,28,29,56,31,27,1,17,18,2], spinor bundles [67,68,37,36,38], and also have great importance in the theory of the Dirac operator on manifolds [8,7,77,35,3]. The Clifford-Lipschitz groups also intensively used in theoretical physics [23,32,34,69,33,10,19].…”