# Cotton Blend Gravity $pp$ Waves

@article{Deser2004CottonBG, title={Cotton Blend Gravity \$pp\$ Waves}, author={Stanley Deser and Roman Jackiw and So Young Pi}, journal={arXiv: General Relativity and Quantum Cosmology}, year={2004} }

We study conformal gravity in d=2+1, where the Cotton tensor is equated to a--necessarily traceless--matter stress tensor, for us that of the improved scalar field. We first solve this system exactly in the $pp$ wave regime, then show it to be equivalent to topologically massive gravity.

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