4 relations: BTZ black hole, CGHS model, Chern–Simons theory, Index of physics articles (!$@).

## BTZ black hole

The BTZ black hole, named after Máximo Bañados, Claudio Teitelboim, and Jorge Zanelli, is a black hole solution for (2+1)-dimensional topological gravity with a negative cosmological constant.

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## CGHS model

The Callan–Giddings–Harvey–Strominger model or CGHS model in short is a toy model of general relativity in 1 spatial and 1 time dimension.

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## Chern–Simons theory

The Chern–Simons theory, named after Shiing-Shen Chern and James Harris Simons, is a 3-dimensional topological quantum field theory of Schwarz type, developed by Edward Witten.

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## Index of physics articles (!$@)

The index of physics articles is split into multiple pages due to its size.

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## Redirects here:

(2+1)–dimensional topological gravity, 2+1D topological gravity.

## References

[1] https://en.wikipedia.org/wiki/(2%2B1)-dimensional_topological_gravity