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010   $a3-319-01210-X
024 7 $a10.1007/978-3-319-01210-0
035   $a(CKB)2670000000429066
035   $a(EBL)1466608
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035   $a(PQKBTitleCode)TC0001010785
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035   $a(DE-He213)978-3-319-01210-0
035   $a(PPN)172423694
035   $a(EXLCZ)992670000000429066
100   $a20130920d2014      u|         0
101 0 $aeng
135   $aur|n|---|||||
181   $ctxt
182   $cc
183   $acr
200 10$aGeneralized Perturbations in Modified Gravity and Dark Energy /$fby Jonathan Pearson
205   $a1st ed. 2014.
210  1$aCham :$cSpringer International Publishing :$cImprint: Springer,$d2014.
215   $a1 online resource (213 p.)
225 1 $aSpringer Theses, Recognizing Outstanding Ph.D. Research,$x2190-5053
300   $aDescription based upon print version of record.
311   $a3-319-01209-6 
320   $aIncludes bibliographical references.
327   $aGravitational theories and cosmology -- The effective action formalism for cosmological perturbations -- Metric only and first order scalar field theory -- High derivative theories -- Explicit theories -- Connections to massive gravity -- Generalized fluid description -- Observational signatures of generalized cosmological perturbations -- Discussion and final remarks.
330   $aWhen predictions of Einstein's theory of General Relativity are compared against observations of our Universe, a huge inconsistency is found. The most popular fix for this inconsistency is to "invent" around 94% of the content of the universe: dark matter and dark energy. The dark energy is some exotic substance responsible for the apparent observed acceleration of the Universe. Another fix is to modify the theory of gravity: it is entirely plausible that Einstein's theory of General Relativity breaks down on cosmological scales, just as Newton's theory of gravity breaks down in the extreme gravitational field of the Sun. There are many alternative theories of gravity,  each with the aim of describing observations of our Universe where General Relativity fails. Whether it is dark energy or some modified theory of gravity, it is clear that there is some "dark sector" in the Universe. In this thesis the author constructs a unifying framework for understanding the observational impact of general classes of dark sector theories, by formulating equations of state for the dark sector perturbations.
410  0$aSpringer Theses, Recognizing Outstanding Ph.D. Research,$x2190-5053
606   $aGravitation
606   $aCosmology
606   $aMathematical physics
606   $aClassical and Quantum Gravitation, Relativity Theory$3https://scigraph.springernature.com/ontologies/product-market-codes/P19070
606   $aCosmology$3https://scigraph.springernature.com/ontologies/product-market-codes/P22049
606   $aMathematical Applications in the Physical Sciences$3https://scigraph.springernature.com/ontologies/product-market-codes/M13120
615  0$aGravitation.
615  0$aCosmology.
615  0$aMathematical physics.
615 14$aClassical and Quantum Gravitation, Relativity Theory.
615 24$aCosmology.
615 24$aMathematical Applications in the Physical Sciences.
676   $a530
676   $a530.11
700   $aPearson$b Jonathan$4aut$4http://id.loc.gov/vocabulary/relators/aut$0791356
906   $aBOOK
912   $a9910300383103321
996   $aGeneralized Perturbations in Modified Gravity and Dark Energy$91768737
997   $aUNINA