Calculating the Hawking Temperatures of Kerr-Newman Black Holes in the f(R) Gravity Models with the RVB Method

Abstract

In this study, we conducted a comparison between the RVB method and the conventional method discussed in previous literature for calculating the Hawking temperature of Kerr-Newman black holes under f(R) gravity\cite{9,10,11}. Our research findings are in agreement with the results presented in the literature\cite{17}, with only a variation in the integration constant. Through the comparison of these two methods, we arrived at consistent conclusions.After conducting a thorough comparison between the RVB method and the temperature Green's function method, we have found that these two approaches are fundamentally identical. This significant finding highlights the high level of consistency between the temperature Green's function method and the RVB method.

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