/sci/ - Science & Math

>Call me tooker because I'm inside your neighborhood of infinity
>Why not just a neighborhood of 2^200?
>My big Picard says I can find it near your essential singularity anyways
>[Zoom into her hairy asshole]
>It looks like your fiber bundle has nontrivial structure. Let's see what happens after an action from my D-module

I see the wind, oh I see the trees. Everything is clear in my heart

>>12515469
[math] \mathbf{Two~dimensional~relativistic~gravity} [/math]
For the two dimensional gravity, with point masses, there is a nice description which can be understood immediately. Two dimensional point masses are parallel strings moving perpendicular to the direction of motion in 3d plus time, but these strings are like pencils of light, not stationary line-masses, they are relativistic along their direction of motion. You need to have a relativistic momentum density on the strings for them to reduce to the simple limit of 2+1 gravity.

In this limit, the strings are described by 2+1 graity. The point masses in 2+1 gravity are described by cutting out a wedge from a two dimensional paper representing space-time, and gluing it back to form a cone. This description is exact - this is what the space-time around a relativistic cosmic strings looks like. The space is called locally flat, because if you draw a least distance line it will be straight after unrolling the paper, so that the only curvature is that which can be seen from outside, not to a flat fellow living inside the paper. There is only intrinsic curvature at the tip of the cone, proportional to the deficit angle, the angular size of the wedge. This is is the mass of the string.

>let

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