A derivation of Weyl-Lanczos equations
arXiv:1801.03296 · doi:10.1140/epjp/i2018-11995-x
Abstract
The Lanczos potential for the Weyl tensor is derived from a quadratic curvature Lagrangian by making use of the exterior algebra of forms and the variational principles with constraints.
Published version, typos fixed, 14 pages, 42 references