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In this note we show how to construct a number of nonconvex quadraticinequalities for a variety of physics equations appearing in physical designproblems. These nonconvex quadratic inequalities can then be used to constructbounds on physical design problems where the objective is a quadratic or aratio of quadratics. We show that the quadratic inequalities and the originalphysics equations are equivalent under a technical condition that holds in manypractical cases which is easy to computationally (and, in some cases, manually)verify.

A Note on Generalizing Power Bounds for Physical Design