Rational versus polynomial character of Wln-algebras

L. Fehér, L. O'Raifeartaigh, P. Ruelle, I. Tsutsui

Research output: Contribution to journalArticle

6 Citations (Scopus)


The constraints proposed recently by Bershadsky to produce Wln-algebras are a mixture of first -and second-class constraints and are degenerate. We show that they admit a first-class subsystem from which they can be recovered by gauge-fixing, and that the non-degenerate constraints can be handled by previous methods. The degenerate constraints present a new situation in which the natural primary field basis for the gauge-invariants is rational rather than polynomial. We give an algorithm for constructing the rational basis and converting the base elements to polynomials.

Original languageEnglish
Pages (from-to)243-251
Number of pages9
JournalPhysics Letters B
Issue number3-4
Publication statusPublished - Jun 11 1992

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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