Abstract
We consider vector-tensor minimally coupled Lagrangians, i.e., scalar densities of the formℒ = g1/2R +L(g ij ;Ψ i ;Ψ i,j ). We prove that the gauge invariance of any of the sets of Euler-Lagrange expressions implies the gauge invariance of the Lagrangian itself forn even, and an “almost” gauge invariance forn odd. We also find those ℒ for whichE i (ℒ) = 0 orE ij (L) = 0, generalizing well-known results by Lovelock and a result by the authors.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
