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Riemann surfaces(Riemannian surfaces) is one dimensional complex manifold. For questions about classical examples in complex analysis, complex geometry, surface topology.

2 votes
0 answers
252 views

Parametrizations of the Moduli Space of Riemann Surfaces

I am looking for a reference or references about different parameterizations of moduli space of Riemann surfaces of genus $g$ with $n$ borders and/or punctures. I wish to know the basics of different …
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2 votes
0 answers
321 views

Dessin d'enfant and moduli space of bordered/punctured hyperbolic Riemann surfaces

Belyi's theorem states that if a Riemann surface could be defined as an algebraic curve over an algebraic number field, then this Riemann surface could be described by a Dessin d'enfant. I have two qu …
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  • 989
2 votes
0 answers
458 views

Teichmuller Space of a Disk with Holes and Boundary Punctures

If we consider a disk $D$ with $h$ holes and $n$ punctures on the boundary of the disk, then: Is there a uniformization theorem for such surfaces? What is the condition on $h$ and $n$ such that we c …
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  • 989
7 votes
2 answers
1k views

Uniformizations of the bordered/punctured Riemann surfaces

The uniformization theorems of Riemann surfaces state that any Riemann surface can be constructed by an action of some group on some space. It is quite hard to find materials relating different unifor …
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  • 989
1 vote
0 answers
71 views

Spaces of Bordered (Ordinary, Spin- or Super-) Riemann Surfaces

It is known from the work of Deligne and Mumford that the "space" of punctured/marked Riemann surfaces is a Deligne-Mumford stack. I have few questions regarding similar statement for the spaces of su …
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0 votes
2 answers
330 views

Reference for 'Normal Subgroups of Fuchsian Groups'

I am looking for a reference on how to explicitly construct normal subgroups of a given Fuchsian group. I appreciate any help.
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  • 989
6 votes
2 answers
492 views

Riemann Theta Function On Hyperbolic Riemann Surfaces

The Riemann theta function for a genus $g$ closed Riemann surface with period matrix $\tau=[\tau_{ij}]$ is defined by $$\theta(\{z_1,\cdots,z_g\}|\tau)=\Sigma_{n\in\mathbb{Z}^g}e^{\pi i(n\cdot\tau\cd …
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  • 989
1 vote
0 answers
458 views

The Deligne-Mumford Compactification for Closed Surfaces

I am reading this note on super-Riemann surfaces. In the second paragraph of section 7.4.1 (page 87), there is a statement that I am trying to understand: The compactified moduli space of closed o …
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  • 989
5 votes
1 answer
201 views

Mapping-Class Groups of Subsurfaces of a Hyperbolic Surface

If $\mathcal{R}'$ is a closed subsurface of a hyperbolic surface $\mathcal{R}$, then there is an inclusion homomorphism between the mapping class groups: $$\text{Mod}(\mathcal{R}')\longrightarrow \t …
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  • 989
7 votes
1 answer
383 views

Selberg Zeta Function and Fenchel-Nielsen Coordinates

According to Uniformization theorem every compact Riemann surface $\Sigma$ of genus $g\ge2$ is isomorphic to a space that can be obtained by the action of a Fuchsian group on upper half plane $\mathbb …
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