Гравировка доступна с 10 марта, в рабочем режиме.
8,9 марта магазин и интернет-магазин работают в обычном режиме.
( ds^2 = -(1 - \frac2GMr) dt^2 + (1 - \frac2GMr)^-1 dr^2 + r^2 d\Omega^2 ) Thus ( g_tt = -(1 - \frac2GMr),\quad g_rr = (1 - \frac2GMr)^-1 )
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Many “free PDF” sites host pirated copies of copyrighted books (e.g., Schaum’s Outline of Tensor Calculus ). Respect intellectual property: ( ds^2 = -(1 - \frac2GMr) dt^2 +