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161202 ||| eng |
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|a 9783319466217
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|a Solomon, Adam Ross
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| 245 |
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|a Cosmology Beyond Einstein
|h Elektronische Ressource
|c by Adam Ross Solomon
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| 250 |
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|a 1st ed. 2017
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| 260 |
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|a Cham
|b Springer International Publishing
|c 2017, 2017
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| 300 |
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|a XXI, 231 p. 20 illus. in color
|b online resource
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| 505 |
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|a Introduction -- Gravity Beyond General Relativity -- Cosmological Stability of Massive Bigravity -- Linear Structure Growth in Massive Bigravity -- The Geometry of Doubly-Coupled Bigravity -- Cosmological Implications of Doubly-Coupled Massive Bigravity -- Cosmological Implications of Doubly-Coupled Massive Gravity -- Lorentz Violation During Inflation -- Discussion and Conclusions
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| 653 |
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|a Particle and Nuclear Physics
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| 653 |
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|a Cosmology
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| 653 |
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|a Nuclear physics
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| 653 |
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|a Classical and Quantum Gravitation, Relativity Theory
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| 653 |
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|a Gravitation
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| 653 |
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|a Cosmology
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| 041 |
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7 |
|a eng
|2 ISO 639-2
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| 989 |
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|b Springer
|a Springer eBooks 2005-
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| 490 |
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|a Springer Theses, Recognizing Outstanding Ph.D. Research
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| 856 |
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|u https://doi.org/10.1007/978-3-319-46621-7?nosfx=y
|x Verlag
|3 Volltext
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| 082 |
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|a 523.1
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| 520 |
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|a This thesis investigates the theoretical and cosmological implications of modifying Einstein's theory of general relativity. It explores two classes of modifications to gravity: those in which the graviton is given a small mass, and those in which Lorentz invariance is spontaneously broken. It elucidates the nature of cosmological perturbations in theories of massive bimetric gravity, including a potentially deadly instability. Theories of gravity beyond general relativity could explain why the expansion of the Universe is accelerating, obviating the need for a dark energy, and can also affect the evolution of the early Universe. Next, it investigates the nature of spacetime in massive gravity theories that contain two different spacetime metrics. Lastly, the strongest constraints to date are placed on the size of Lorentz-violating effects in the gravity sector during inflation.
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