%0 Journal Article %T The Freudenthal gauge symmetry of the black holes of N=2, d=4 supergravity %A Galli, P. %A Meessen, P. %A Ortin, T. %J Journal of High Energy Physics %D 2013 %V 05 %N 5 %I Springer %@ 1029-8479 %G English %F Galli_etal2013 %O WOS:000321374400011 %O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=1555), last updated on Wed, 11 Sep 2013 02:37:52 +0000 %X We show that the representation of black-hole solutions in terms of the variables H-M which are harmonic functions in the supersymmetric case is non-unique due to the existence of a local symmetry in the effective action. This symmetry is a continuous (and local) generalization of the discrete Freudenthal transformations initially introduced for the black-hole charges and can be used to rewrite the physical fields of a solution in terms of entirely different-looking functions. %K Black Holes %K String Duality %K Gauge Symmetry %K Supergravity Models %R 10.1007/JHEP05(2013)011 %U http://arxiv.org/abs/arXiv:1211.7296 %U https://doi.org/10.1007/JHEP05(2013)011 %P 011-15pp