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Comment on “Exact vacuum solution with Hopf structure in general relativity”

M. A. H. MacCallum*

  • *Contact author: m.a.h.maccallum@qmul.ac.uk
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Phys. Rev. D 113, 128501 – Published 23 June, 2026

DOI: https://doi.org/10.1103/kbhc-p36h

Abstract

Harada’s recently announced Kerr-Schild solution of Einstein’s equations in general relativity [Phys. Rev. D 112, 024020 (2025)] is identified as isometric with one of the well-known NUT solutions.

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Article Text

Original Article

Exact vacuum solution with Hopf structure in general relativity

Junpei Harada
Phys. Rev. D 112, 024020 (2025)

References (13)

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Outline

Information

Phys. Rev. D 113, 128501– Published 23 June, 2026
  • Received 9 March 2026
  • Accepted 30 April 2026
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