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We study the asymptotic Virasoro symmetry which acts on the near-horizonregion of extremal four-dimensional black hole solutions of gravity theorieswith higher-derivative corrections, following the recently proposed Kerr/CFTcorrespondence. We demonstrate that its central charge correctly reproduces theentropy formula of Iyer-Wald, once the boundary terms in the symplecticstructure are carefully chosen.

Higher-Derivative Corrections to the Asymptotic Virasoro Symmetry of 4d Extremal Black Holes