The paper “The failure of the Ehlers–Kundt conjecture in the impulsive case“, co-authored by M.L. Frauenberger, J.D.E. Grant & R. Steinbauer, has been published in the journal “General Relativity and Gravitation”. The Ehlers and Kundt conjecture, postulated in 1962, claimed that plane waves are the only class of complete Ricci-flat pp-waves. The paper summarises completeness […]
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