The Stability of an Isotropic Cosmological Singularity in Higher-Order Gravity (2008)
Middleton, Jonathan, Barrow, John D.
We study the stability of the isotropic vacuum Friedmann universe in gravity theories with higher-order curvature terms of the form $(R_{ab}R^{ab})^{n}$ added to the Einstein-Hilbert Lagrangian of...
Stable Isotropic Cosmological Singularities in Quadratic Gravity (2007)
Barrow, John D., Middleton, Jonathan
We show that, in quadratic lagrangian theories of gravity, isotropic cosmological singularities are stable to the presence of small scalar, vector and tensor inhomogeneities. Unlike in general...
Journey without end:--piece for mixed voices, flute and piano /--by Jonathan Middleton. (1990)
A Division III examination in the School of Humanities and Arts, Hampshire College, May 1990. Chairperson, Ann Kearns.