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`Higher-spin symmetries, effective action and holography'

Abstract: The conformal symmetries of a free scalar field can be
extended to infinite dimensional higher-spin(HS) symmetries.We
consider the gauging of the symmetries by HS gauge fields, and compute
the coresponding HS effective action. The latter exhibits an anomaly
in the conformal sector of the HS symmetries.  We also discuss
holographic aspects of the model as the boundary dual of an
interacting HS gauge theory in the bulk. 
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