physical cosmology, cosmological perturbation theory is the theory by which the evolution of structure is understood in the Big Bang model. Cosmological perturbation...

In mathematics and applied mathematics, perturbation theory comprises methods for finding an approximate solution to a problem, by starting from the exact...

Physical cosmology is a branch of cosmology concerned with the study of cosmological models. A cosmological model, or simply cosmology, provides a description...

is a physical theory that describes how the universe expanded from an initial state of high density and temperature. Various cosmological models based...

in the universe in cosmological perturbation theory. The vector perturbations vanish in cosmic inflation and the tensor perturbations are gravitational...

In cosmological perturbation theory, the scalar–vector–tensor decomposition is a decomposition of the most general linearized perturbations of the...

Dmitriy Tseliakhovich, he pointed to an unprecedented effect in cosmological perturbation theory for the calculation of the formation of the first structures...

In physical cosmology, cosmic inflation, cosmological inflation, or just inflation, is a theory of exponential expansion of space in the very early universe...

evolution of the universe could be understood through linear cosmological perturbation theory: that is, all structures could be understood as small deviations...

consistent quantum cosmological perturbation theory. Since 2006, Mukhanov is the Scientific Director of the Journal of Cosmology and Astroparticle Physics...

More unsolved problems in physics An inhomogeneous cosmology is a physical cosmological theory (an astronomical model of the physical universe's origin...

each with a different value of the cosmological constant, and observations indicate a small value of the cosmological constant only because humans happen...

Fluctuations in the energy spectrum of the microwave background Cosmological perturbation theory – theory by which the evolution of structure is understood in the...

research on the two-body problem in general relativity and on cosmological perturbation theory. Deruelle began her studies at the École normale supérieure...

(1956–) formulated the theory of string gas cosmology, with colleague Cumrun Vafa, and developed cosmological perturbation theory Bernard J. Carr (1949–)...

relativistic astrophysics. He has made substantial contributions to cosmological perturbation theory and structure formation in the universe. Bertschinger, Edmund;...

theory — Perturbation theory — Potential theory — Probability theory — Ramsey theory — Rational choice theory — Representation theory — Ring theory —...

cold dark matter modes to be small. Physics portal Big Bang Cosmological perturbation theory Cosmic microwave background spectral distortions Press–Schechter...

to the cosmological constant are among the current unsolved mysteries regarding gravity, all of which signal the collapse of the general theory of relativity...

In cosmology, the cosmological constant (usually denoted by the Greek capital letter lambda: Λ), alternatively called Einstein's cosmological constant...

readily described by the expanding cosmological solutions found by Friedmann in 1922, which do not require a cosmological constant. Lemaître used these solutions...

universe, cosmological perturbation theory, and cosmic 21-cm fluctuations. In 2010, he co-authored a paper proposing the theory of hylogenesis, a theory of the...

to study the universe. He studied theoretical cosmology, in particular cosmological perturbation theory, at graduate school at the University of Florida...

galaxies, as a result of applying the cosmological principle to general relativity. Karl Popper criticized the cosmological principle on the grounds that it...

gravitational dynamics. For photons, expansion leads to the cosmological redshift. While the cosmological redshift is often explained as the stretching of photon...

relativity is the correct theory of gravity on cosmological scales. It emerged in the late 1990s as a concordance cosmology, after a period when disparate...

The Big Bounce hypothesis is a cosmological model for the origin of the known universe. It was originally suggested as a phase of the cyclic model or oscillatory...

usually made using calculational approximation methods, although such perturbation theory is inadequate to model some experimental observations (for instance...

Today, observational cosmology continues to test the predictions of theoretical cosmology and has led to the refinement of cosmological models. For example...

Expansion of the universe Hubble's law Big Bang Cosmological constant Inflaton Cosmological perturbation theory Structure formation Kari Enqvist David Wands...