Abstract
We provide a constructive, variational proof of Rivin’s realization theorem for ideal hyperbolic polyhedra with prescribed intrinsic metric, which is equivalent to a discrete uniformization theorem for spheres. The same variational method is also used to prove a discrete uniformization theorem of Gu et al. and a corresponding polyhedral realization result of Fillastre. The variational principles involve twice continuously differentiable functions on the decorated Teichmuller spaces $$\widetilde{\mathscr {T}}_{g,n}$$ of punctured surfaces, which are analytic in each Penner cell, convex on each fiber over $$\mathscr {T}_{g,n}$$ , and invariant under the action of the mapping class group.
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