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Renormalized volume on the Teichm\"uller space of punctured surfaces

Research paper by Colin Guillarmou, Sergiu Moroianu, Frédéric Rochon

Indexed on: 21 Dec '15Published on: 21 Dec '15Published in: Mathematics - Differential Geometry



Abstract

We define and study the renormalized volume for geometrically finite hyperbolic $3$-manifolds, including with rank-$1$ cusps. We prove a variation formula, and show that for certain families of convex co-compact hyperbolic metrics $g_\eps$ degenerating to a geometrically finite hyperbolic metric $g_0$ with rank-$1$ cusps, the renormalized volume converges to the renormalized volume of the limiting metric.