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B <br />
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<br />
B <br />
M <br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
gµν <br />
<br />
ds 2 = gµνdx µ dx ν <br />
= − 1 − 2M<br />
<br />
dt<br />
r<br />
2 <br />
+ 1 − 2M<br />
−1 dr<br />
r<br />
2 +r 2 (dθ 2 +sin 2 θdϕ 2 ). <br />
<br />
<br />
gµν <br />
<br />
∂ µ <br />
∂t<br />
<br />
<br />
<br />
M <br />
M <br />
<br />
<br />
<br />
r = 0 r = 2M g00 <br />
g11 <br />
r > 2M r < 2M