对C. C.《作为黑洞熵、奇点和时空空洞的欧几里得引力action》的评论Castro，J. Math. Phys.，49，042501，2008
Comments on "The Euclidean gravitational action as black hole entropy, singularities, and spacetime voids" by C. Castro, J. Math. Phys., 49, 042501, 2008
摘要：
我们指出，Castro[J. Math. Phys. 49，042501，（2008）]所推断的{ \em时空空洞}是由他选择的不连续径向规范所导致的。此外，由于中性“质点“的真空希尔伯特/史瓦西解中出现的积分常数$α_0 = 2M_0$（$G=c=1$）为零[Arnowitt等人，《引力：当前研究导论》，L. Witten，Wiley，Chap. 7，p.227;以及Phys. Rev. Lett.，4，375，（1960）]; A. Mitra，Adv. Sp. Res.，38，2917（2006）]卡斯特罗规范简化为表现良好的物理希尔伯特规范。物理上这意味着真正的希尔伯特/史瓦西黑洞有唯一的引力质量M=0。因此，卡斯特罗推断的非物理{ \em时空viod}实际上是不存在的。
英文摘要：
We point out that the {\em spacetime void} inferred by Castro[J. Math. Phys. 49, 042501, (2008)] results from his choice of a discontinuous radial gauge. Further since the integration constant $α_0 = 2M_0$ ($G=c=1$) occurring in the vacuum Hilbert/Schwarzschild solution of a neutral "point mass" is zero [Arnowitt et al., in Gravitation: An Introduction to Current Research, ed. L. Witten, Wiley, Chap. 7, p.227; also Phys. Rev. Lett., 4, 375, (1960)]; A. Mitra, Adv. Sp. Res., 38, 2917 (2006)] Castro's gauge reduces to the well behaved and physical Hilbert gauge. Physically this means that true Hilbert/Schwarzschild black holes have unique gravitational mass M=0. Accordingly, the unphysical {\em spacetime viod} inferred by Castro is actually non-existent.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
