© 1991 by London Mathematical Society
Real Projective Representations of Clifford Algebras, and Symmetric Groups
Department of Mathematics, The University College of Wales Aberystwyth, Dyfed SY23 3BZ
In earlier publications, the second author has shown how a Clifford-algebra approach could be used to determine results concerning the complex covering groups of reflection groups and, in particular, symmetric groups. More recently, M. L. Nazarov [7, 8] has shown how to determine a complete set of irreducible projective representations of symmetric groups. Our main aim in this paper is to extend all of these results to the real case. Surprisingly, the background explicit information about the real representations of Clifford algebras and the real covering groups of orthogonal groups were not available.