- #1
snoopies622
- 844
- 28
Can a 4-dimensional manifold with the Schwarzschild metric be embedded into a flat manifold of 5 (or more if necessary) dimensions? In other words, are there functions of [tex]t,r,\theta , \phi [/tex] and [tex] M[/tex] such that if
[tex]
x_1 = f_1 (t,r,\theta ,\phi ,M)[/tex]
[tex]
x_2 = f_2 (t,r,\theta ,\phi ,M)
[/tex]
.
.
etc.
then
[tex] ds^2=dx_1 ^2 +dx_2 ^2 +dx_3 ^2 +dx_4 ^2 +dx_5 ^2[/tex]
[tex]=(1-\frac{2GM}{c^2 r})c^2 dt^2-\frac{dr^2}{1-(2GM/c^2 r)} - r^2 sin^2 \theta d\phi ^2 - r^2 d\theta ^2?[/tex]
I like the idea of a Euclidean (or Minkowskian) hyperspace that contains gravitational fields, even if it turns out to have no practical application.
[tex]
x_1 = f_1 (t,r,\theta ,\phi ,M)[/tex]
[tex]
x_2 = f_2 (t,r,\theta ,\phi ,M)
[/tex]
.
.
etc.
then
[tex] ds^2=dx_1 ^2 +dx_2 ^2 +dx_3 ^2 +dx_4 ^2 +dx_5 ^2[/tex]
[tex]=(1-\frac{2GM}{c^2 r})c^2 dt^2-\frac{dr^2}{1-(2GM/c^2 r)} - r^2 sin^2 \theta d\phi ^2 - r^2 d\theta ^2?[/tex]
I like the idea of a Euclidean (or Minkowskian) hyperspace that contains gravitational fields, even if it turns out to have no practical application.