Linearised conformal Einstein field equations
Classical and Quantum Gravity, ISSN: 1361-6382, Vol: 40, Issue: 17
2023
- 2Citations
- 2Captures
Metric Options: CountsSelecting the 1-year or 3-year option will change the metrics count to percentiles, illustrating how an article or review compares to other articles or reviews within the selected time period in the same journal. Selecting the 1-year option compares the metrics against other articles/reviews that were also published in the same calendar year. Selecting the 3-year option compares the metrics against other articles/reviews that were also published in the same calendar year plus the two years prior.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Article Description
The linearisation of a second-order formulation of the conformal Einstein field equations (CEFEs) in generalised harmonic gauge (GHG), with trace-free matter is derived. The linearised equations are obtained for a general background and then particularised for the study linear perturbations around a flat background—the inversion (conformal) representation of the Minkowski spacetime—and the solutions discussed. We show that the generalised Lorenz gauge (defined as the linear analogue of the GHG-gauge) propagates. Moreover, the equation for the conformal factor can be trivialised with an appropriate choice for the gauge source functions; this permits a scri-fixing strategy using gauge source functions for the linearised wave-like CEFE-GHG, which can in principle be generalised to the nonlinear case. As a particular application of the linearised equations, the far-field and compact source approximation is employed to derive quadrupole-like formulae for various conformal fields such as the perturbation of the rescaled Weyl tensor.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85166198072&origin=inward; http://dx.doi.org/10.1088/1361-6382/ace606; https://iopscience.iop.org/article/10.1088/1361-6382/ace606; https://dx.doi.org/10.1088/1361-6382/ace606; https://validate.perfdrive.com/fb803c746e9148689b3984a31fccd902/?ssa=fd9a3cfc-e644-47fb-a233-33f34bc1ea5b&ssb=30573255615&ssc=https%3A%2F%2Fiopscience.iop.org%2Farticle%2F10.1088%2F1361-6382%2Face606&ssi=33b00240-8427-4083-8145-4c2953813c57&ssk=support@shieldsquare.com&ssm=304355660998896468833234852332924&ssn=9f962f5839ee12b231e4b4b4e338ee9dd52517f9ea44-4e1f-4e35-b8ebd3&sso=05b9f15e-f9d9f87a371fbdd8169f41572296df2ea0154efef2f45973&ssp=89837450341719351467171933047293721&ssq=68179352175324620092105699084737217676536&ssr=NTIuMy4yMTcuMjU0&sst=com.plumanalytics&ssu=&ssv=&ssw=&ssx=eyJfX3V6bWYiOiI3ZjYwMDBjMGI2MzM1NC00OGRkLTRjNTUtODVmZS00NzZmMjgxYzE5ZDgxNzE5MzA1Njk5NDA1MTYwNTQyMDktYzYxOWJiY2MxNWMwMDQwMDg4MyIsInJkIjoiaW9wLm9yZyIsInV6bXgiOiI3ZjkwMDAxZTFhNWQwZC1iNGU2LTRlNDQtYWZhOC03NTExMWZmODRkOWYxLTE3MTkzMDU2OTk0MDUxNjA1NDIwOS01ZDJmNjQ1ZjQ0ZmIyYWVhODgzIn0=
IOP Publishing
Provide Feedback
Have ideas for a new metric? Would you like to see something else here?Let us know