List of Vampire Hunter D light novels

${\displaystyle r_{\mathrm {g} }={\frac {2GM}{c^{2}}}}$

${\displaystyle i\gamma ^{\mu }{}\partial {}_{\mu }{}\psi (x)-m\psi (x)=0}$

${\displaystyle G_{\mu \nu }+\Lambda g_{\mu \nu }=8\pi T_{\mu \nu }}$