Strong contraction of the representations of the three-dimensional Lie algebras

E. M. Subag, E. M. Baruch, J. L. Birman, A. Mann

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


For any İnönüWigner contraction of a three-dimensional Lie algebra we construct the corresponding contractions of representations. Our method is quite canonical in the sense that in all cases we deal with realizations of the representations on some spaces of functions; we contract the differential operators on those spaces along with the representation spaces themselves by taking certain pointwise limit of functions. We call such contractions strong contractions. We show that this pointwise limit gives rise to a direct limit space. Many of these contractions are new and in other examples we give a different proof.

Original languageEnglish (US)
Article number265206
JournalJournal of Physics A: Mathematical and Theoretical
Issue number26
StatePublished - Jul 6 2012

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Modeling and Simulation
  • Mathematical Physics
  • General Physics and Astronomy


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