2005/04/19 by S. R. Czapor, R. G. McLenaghan, F. D. Sasse
Physics and Astronomy · Mathematics · #math-ph #math.MP #msc:35L15 #msc:83C20 #msc:83C60
published as Ann. Inst. Henri Poincare (A) Phys. Theorique 71, 595-620 (1999) · 22 pages
arxiv created 2005/04/19 · arxiv updated 2009/12/01
We prove that there are no Petrov type III space-times on which the conformally invariant (self-adjoint) scalar wave equation or the non-self-adjoint scalar wave equation satisfies Huygens' principle.