TY  - BOOK
AU  - Pearson, Jonathan.
TI  - Generalized perturbations in modified gravity and dark energy
T2  - Springer theses
SN  - 9783319012094
U1  - 521.1 23
PY  - 2014///
CY  - Switzerland
PB  - Springer
KW  - Dark energy (Astronomy).
KW  - General relativity (Physics)
KW  - Gravitation
N1  - Doctoral thesis accepted by Manchester University, UK; Includes references; 1. Introduction to Gravitational Theories and Cosmology--
2. The Effective Action Formalism for Cosmological Perturbations--
3. Metric Only and First Order Scalar Field Theory--
4. High Derivative Theories--
5. Explicit Theories--
6. Connections to Massive gravity--
7. Generalized Fluid Description--
8. Observational Signatures of Generalized Cosmological Perturbations--
9. Discussion and Final Remarks--

About the Author--
References--


N2  - When predictions of Einstein's theory of General Relativity are compared against observations of our Universe, a huge inconsistency is found. The most popular fix for this inconsistency is to 'invent' around 94% of the content of the universe: dark matter and dark energy. The dark energy is some exotic substance responsible for the apparent observed acceleration of the Universe. Another fix is to modify the theory of gravity: it is entirely plausible that Einstein's theory of General Relativity breaks down on cosmological scales, just as Newton's theory of gravity breaks down in the extreme gr.
ER  -