The radiation instability in modified gravity
2021 ◽
Vol 36
(08n09)
◽
pp. 2150060
Keyword(s):
We study the problem of the instability of inhomogeneous radiation universes in quadratic Lagrangian theories of gravity written as a system of evolution equations with constraints. We construct formal series expansions and show that the resulting solutions have a smaller number of arbitrary functions than that required in a general solution. These results continue to hold for more general polynomial extensions of general relativity.
2019 ◽
Vol 28
(05)
◽
pp. 1942004
◽
2020 ◽
Vol 29
(09)
◽
pp. 2050068
◽
2015 ◽
Vol 24
(07)
◽
pp. 1550053
◽
2010 ◽
Vol 25
(27)
◽
pp. 2325-2332
◽
1968 ◽
Vol 90
(4)
◽
pp. 666-670
◽
2012 ◽
Vol 10
◽
pp. 63-68
◽
2018 ◽
Vol 2018
(11)
◽
pp. E02-E02
◽