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000695563 020__ $$a9783319012100 $$qelectronic book
000695563 020__ $$a331901210X $$qelectronic book
000695563 020__ $$z9783319012094
000695563 0247_ $$a10.1007/978-3-319-01210-0$$2doi
000695563 035__ $$aSP(OCoLC)ocn859774989
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000695563 1001_ $$aPearson, Jonathan,$$eauthor.
000695563 24510 $$aGeneralized perturbations in modified gravity and dark energy$$h[electronic resource]  /$$cJonathan Pearson.
000695563 264_1 $$aCham :$$bSpringer,$$c[2013?]
000695563 264_4 $$c©2014
000695563 300__ $$a1 online resource (xix, 200 pages) :$$billustrations (some color).
000695563 336__ $$atext$$btxt$$2rdacontent
000695563 337__ $$acomputer$$bc$$2rdamedia
000695563 338__ $$aonline resource$$bcr$$2rdacarrier
000695563 4901_ $$aSpringer theses,$$x2190-5053
000695563 502__ $$bPh.D.$$cUniversity of Manchester$$d2012.
000695563 504__ $$aIncludes bibliographical references.
000695563 5050_ $$aGravitational theories and cosmology -- The effective action formalism for cosmological perturbations -- Metric only and first order scalar field theory -- High derivative theories -- Explicit theories -- Connections to massive gravity -- Generalized fluid description -- Observational signatures of generalized cosmological perturbations -- Discussion and final remarks.
000695563 506__ $$aAccess limited to authorized users.
000695563 520__ $$aWhen predictions of Einstein's theory of General Relativity are compared against observations of our Universe, a huge inconsistency is found. The most popular fix for this inconsistency is to "invent" around 94% of the content of the universe: dark matter and dark energy. The dark energy is some exotic substance responsible for the apparent observed acceleration of the Universe. Another fix is to modify the theory of gravity: it is entirely plausible that Einstein's theory of General Relativity breaks down on cosmological scales, just as Newton's theory of gravity breaks down in the extreme gravitational field of the Sun. There are many alternative theories of gravity, each with the aim of describing observations of our Universe where General Relativity fails. Whether it is dark energy or some modified theory of gravity, it is clear that there is some "dark sector" in the Universe. In this thesis the author constructs a unifying framework for understanding the observational impact of general classes of dark sector theories, by formulating equations of state for the dark sector perturbations.
000695563 588__ $$aDescription based on online resource; title from PDF title page (SpringerLink, viewed September 24, 2013).
000695563 650_0 $$aGravitation.
000695563 650_0 $$aDark energy (Astronomy)
000695563 650_0 $$aGeneral relativity (Physics)
000695563 650_0 $$aPerturbation (Astronomy)
000695563 830_0 $$aSpringer theses,$$x2190-5053
000695563 85280 $$bebk$$hSpringerLink
000695563 85640 $$3SpringerLink$$uhttps://univsouthin.idm.oclc.org/login?url=http://dx.doi.org/10.1007/978-3-319-01210-0$$zOnline Access
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000695563 980__ $$aEBOOK
000695563 980__ $$aBIB
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000695563 983__ $$aOnline
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