English

On the Algebro-Geometric Analysis of Meromorphic (1,0)-forms

Differential Geometry 2017-10-17 v7

Abstract

In this paper, we analyze the theory of meromorphic (1,0)(1,0)-forms ωMΩ(1,0)(CP1).\omega\in\mathcal{M}\Omega^{(1,0)}(\mathbb{CP}^1). Hence, we show that on a compact Riemann surface of genus g=0,g=0, isomorphic to CP1,\mathbb{CP}^1, every non-constant meromorphic function f:XCP1f:X\to\mathbb{CP}^1 has as many zeros as poles, where each is counted according to multiplicities. Such an analysis gives rise to the following result. Invoking the Riemann-Roch theorem for a compact Riemann XX with canonical divisor K,K, it follows that deg(f)=0deg(f)=0 for any principal divisor (f):=D(f):=D on X.X. More precisely, (D)(KD)=deg(D)+1=1\ell(D)-\ell(K-D)=deg(D)+1=1 or (D)(KD)1=0.\ell(D)-\ell(K-D)-1=0. Furthermore, for a diffeomorphism η:XCP1\eta:X\to\mathbb{CP}^1 of a certain kind, a multistep program is implemented to show XX is a compact algebraic variety of dimension one, i.e. a non-singular projective variety. Hence, we adopt a group-theoretic approach and provide a useful heuristic, that is, a set of technical conditions to facilitate the algebro-geometric analysis of simply connected Riemann surfaces X.X.

Keywords

Cite

@article{arxiv.1707.08558,
  title  = {On the Algebro-Geometric Analysis of Meromorphic (1,0)-forms},
  author = {Sergio Charles},
  journal= {arXiv preprint arXiv:1707.08558},
  year   = {2017}
}