Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1996-08-30
J.Math.Phys. 37 (1996) 6586-6589
Physics
High Energy Physics
High Energy Physics - Theory
8 pages, Revtex, no figures
Scientific paper
10.1063/1.531747
We discuss the differing definitions of complex and quaternionic projective group representations employed by us and by Emch. The definition of Emch (termed here a strong projective representation) is too restrictive to accommodate quaternionic Hilbert space embeddings of complex projective representations. Our definition (termed here a weak projective representation) encompasses such embeddings, and leads to a detailed theory of quaternionic, as well as complex, projective group representations.
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