A planefronted wave solution in metricaffine gravity
Abstract
We study planefronted electrovacuum waves in metricaffine gravity (MAG) with cosmological constant in the triplet ansatz sector of the theory. Their field strengths are, on the gravitational side, curvature $R_{\alpha}{}^{\beta}$, nonmetricity $Q_{\alpha\beta}$, torsion $T^{\alpha}$ and, on the matter side, the electromagnetic field strength $F$. Here we basically present, after a short introduction into MAG and its triplet subcase, the results of earlier joint work with Garcia, Macias, and Socorro. Our solution is based on an exact solution of Ozsvath, Robinson, and Rozga describing type N gravitational fields in general relativity as coupled to electromagnetic nullfields.
 Publication:

Exact Solutions and Scalar Fields in Gravity: Recent Developments
 Pub Date:
 2001
 arXiv:
 arXiv:grqc/0011116
 Bibcode:
 2001essf.book..141P
 Keywords:

 General Relativity and Quantum Cosmology
 EPrint:
 10 pages, Invited lecture at a Conference in honour of Heinz Dehnen's 65th and Dietrich Kramer's 60th birthday." Held at CINVESTAVIPN, Mexico City, 26 October 2000. To appear in: ``Exact solutions and scalar field in gravity: Recent Developments." A. Macias, J. Cervantes, and C. Laemmerzahl eds., Kluwer, Dordrecht (2001) to be published