English

Response to the Comment by G. Emch on Projective Group Representations in Quaternionic Hilbert Space

High Energy Physics - Theory 2009-10-30 v1

Abstract

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.

Cite

@article{arxiv.hep-th/9609012,
  title  = {Response to the Comment by G. Emch on Projective Group Representations in Quaternionic Hilbert Space},
  author = {S. L. Adler},
  journal= {arXiv preprint arXiv:hep-th/9609012},
  year   = {2009}
}

Comments

8 pages, Revtex, no figures

R2 v1 2026-07-22T16:01:16.479Z