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Apr 3, 2012 at 4:59 comment added BrainDead Right, by punctured disk, I meant the strip [0,1] x [0,infinity] in the upperhalf plane. And the problem is that $\phi = q^2$ does not have a finite $L^1$ norm. Theorem 3 in Chapter 9.3 (pg.183) seems to be exactly what I need.
Apr 3, 2012 at 3:44 comment added Misha @BrainDead: You are welcome. Judging by your description, your $q$ is holomorphic on the upper half-plane (composition of two holomorphic functions), so Theorem 5 would apply. Maybe the problem is that your quadratic differential is unbounded: I forgot if Theorem 5 has boundedness requirement on $q$.
Apr 3, 2012 at 2:32 comment added BrainDead Thank you for the reference. I'm actually looking at a beltrami differential of a very particular form: mu(z) = k \bar{q}/q, where q is the Koebe function precomposed with the map exp(2pi i z). (So it is a beltrami differential on a punctured disk.) Theorem 5 doesn't really apply in my case, but Chapter 9 of the reference you gave me (which contains the pages you gave) seems to be the right place to start. Again, thank you very much for your answer.
Mar 30, 2012 at 12:20 history edited Misha CC BY-SA 3.0
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Mar 30, 2012 at 5:33 history answered Misha CC BY-SA 3.0