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Statistical Properties of Cosmological Fluctuations
[chapter]
2003
The Early Universe and the Cosmic Microwave Background: Theory and Observations
In this pedagogical lecture, I introduce some of the basic terminology and description of fluctuating fields as they occur on cosmology. I define various statistical, cosmological and sample homogeneity and explain what is meant by the fair sample hypothesis and cosmic variance. I illustrate these concepts using the simplest second-order statistics, i.e. the two-point correlation function and its Fourier transform the power-spectrum. I then give a brief overview of the properties of information
doi:10.1007/978-94-007-1058-0_13
fatcat:hhr62swvlfh3fnexev673krwgm