Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1992-02-12
Commun.Math.Phys.151:467-480,1993
Physics
High Energy Physics
High Energy Physics - Theory
pages 21
Scientific paper
10.1007/BF02097022
Irreducible sigma models, i.e. those for which the partition function does not factorise, are defined on Riemannian spaces with irreducible holonomy groups. These special geometries are characterised by the existence of covariantly constant forms which in turn give rise to symmetries of the supersymmetric sigma model actions. The Poisson bracket algebra of the corresponding currents is a W-algebra. Extended supersymmetries arise as special cases.
Howe P. S.
Papadopoulos George
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