1. The problem statement, all variables and given/known data Consider a perfect fluid in a static, circularly symmetric (2+1)-dimensional spacetime. Derive the analogue of the Tolman-Oppenheimer-Volkov (TOV) equation for (2+1)-dimensions 2. Relevant equations Schwarzchild metric 3. The attempt at a solution Okay. I'm trying to think this through. I've replaced the phi component of the schwarzchild metric with some random variable because we only need circular symmetry. but where do I go from here?