The paper reports closed-form central charges a and c for a string-derived EdGB theory and a Lovelock-Horndeski theory, plus a holographic a-theorem check for the latter.
Adopting the gauge-fixed ansatz: ds2 = ℓ2 4ρ2dρ2 + 1 ρgij(ρ,x )dxidxj (10) where ρ is the holographic radial coordinate (ρ→∞ at the boundary), ℓ is the AdS radius
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Holographic Conformal Anomaly and a-Theorem in 5D Scalar-Tensor Theories from Heterotic Strings
The paper reports closed-form central charges a and c for a string-derived EdGB theory and a Lovelock-Horndeski theory, plus a holographic a-theorem check for the latter.