The universe and time - The problem of time in cosmology

Details The universe and time - The problem of time in cosmology The universe and time - The problem of time in cosmology

Jun 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980poast..28..121h&link_type=abstract

(Polskie Towarzystwo Astronomiczne, Zjazd, 19th, Warsaw, Poland, Sept. 1979.) Postepy Astronomii, vol. 28, Apr.-June 1980, p. 12

Mathematics

Cosmology, Metric Space, Space-Time Functions, Time, Universe, Electrodynamics, Manifolds (Mathematics), Thermodynamic Properties, Viscosity

Scientific paper

It is shown that the existence of a nonvanishing field of timelike directions on a manifold is a necessary and sufficient condition for the manifold to have a Lorentz metric. It is noted that the geometrical structure of space-time does not contain time arrows. The relationship between different time arrows in cosmological models with bulk viscosity is discussed.

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