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This book presents a high-level study of cosmology with interacting
dark energy and no additional fields. It is known that dark energy
is not necessarily uniform when other sources of gravity are
present: interaction with matter leads to its variation in space
and time. The present text studies the cosmological implications of
this circumstance by analyzing cosmological models in which the
dark energy density interacts with matter and thus changes with the
time. The book also includes a translation of a seminal article
about the remarkable life and work of E.B. Gliner, the first person
to suggest the concept of dark energy in 1965.
Generalising Newton's law of gravitation, general relativity is one
of the pillars of modern physics. While applications in the
beginning were restricted to isolated effects such as a proper
understanding of Mercury's orbit, the second half of the twentieth
century saw a massive development of applications. These include
cosmology, gravitational waves, and even very practical results for
satellite based positioning systems as well as different approaches
to unite general relativity with another very successful branch of
physics - quantum theory. On the occassion of general relativity's
centennial, leading scientists in the different branches of
gravitational research review the history and recent advances in
the main fields of applications of the theory, which was referred
to by Lev Landau as "the most beautiful of the existing physical
theories". Contributions from: Andy C. Fabian, Anthony L. Lasenby,
Astrophysical black Holes Neil Ashby, GNSS and other applications
of General Relativity Gene Byrd, Arthur Chernin, Pekka Teerikorpi,
Mauri Vaaltonen, Observations of general Relativity at strong and
weaks limits Ignazio Ciufolini, General Relativity and dragging of
inertial frames Carlo Rovelli, The strange world of quantum
spacetime
This work provides the current theory and observations behind the
cosmological phenomenon of dark energy. The approach is
comprehensive with rigorous mathematical theory and relevant
astronomical observations discussed in context. The book treats the
background and history starting with the new-found importance of
Einstein's cosmological constant (proposed long ago) in dark energy
formulation, as well as the frontiers of dark energy. The authors
do not presuppose advanced knowledge of astronomy, and basic
mathematical concepts used in modern cosmology are presented in a
simple, but rigorous way. All this makes the book useful for both
astronomers and physicists, and also for university students of
physical sciences.
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