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# Questions

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### Why a non-simple geodesic in a Y-piece is NOT homotopic to a common perpendicular to the geodesic boundaries ?

feb 7 11 at 15:22 MathOverflow 123

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### Can we prove $Aut(S_g) , g \geq 2$ is finite in the following way ?

jan 30 11 at 15:57 Andy Putman 18.3k355118

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### Basic Questions about Teichmuller’s theorem/quadratic differentials

jun 10 at 23:22 MathOverflow 123

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### Is the complex harmonic extension of a $\mathcal{C^r}$ map from $S^1$ to $\mathbb{C}$ is smooth upto the boundary ?

apr 8 11 at 15:00 Analysis Now 981210

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### Regularity properties of the derivatives of a particular function on $D \times D\to \bar{D}$ ?

jul 29 11 at 3:36 Analysis Now 981210

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### Questions about hyperbolic structures on a sphere with cone point singularities

sep 27 10 at 21:19 Sam Nead 5,3021226

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### The comparison between the square of the functional value and the sum of squares of the L^2 norms of function and its Laplacian

jul 22 10 at 12:22 Andrey Rekalo 13.9k13268

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### Books about the spectra of non-compact Riemann surfaces

feb 16 11 at 6:35 David Hansen 8,42921848

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### Length of shortest geodesic and Cheeger’s isoperimetric constant for a special genus 2 surface

nov 22 10 at 19:53 Agol 23.9k13384

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