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تسجيل مستخدم جديدNote on the classical solutions of Friedmanns equation
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Graphical representations of classical Friedmanns models are often misleading when one considers the age of the universe. Most textbooks disregard conceptual differences in the representations, as far as ages are concerned. We discuss the details of the scale-factor versus time function for Friedmanns solutions in the time range that includes the ages of model universes.
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d) then the KdV has a unique global classical solution given by a determinant formula. This result is best known to date. end{abstract}
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