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This is the first part of a series of three papers. In this paper, we establish a Big Picard type theorem for holomorphic maps $f:Y \to X$, where $Y$ is a ramified covering of the punctured disc $\mathbb{D}^*$ with small ramification and…

Algebraic Geometry · Mathematics 2025-11-07 Benoit Cadorel , Ya Deng , Katsutoshi Yamanoi

In this paper, we study holomorphic foliations of degree four on complex projective space $\mathbb{P}^n$, where $n\geq 3$, with a special focus on obtaining a structural theorem for these foliations. Furthermore, for a foliation…

Complex Variables · Mathematics 2023-08-22 Arturo Fernández-Pérez , Vângellis Sagnori Maia

Applying the Second Main Theorem we deal with the algebraic degeneracy of entire holomorphic curves from the complex plane into a complex algebraic normal variety of positive log Kodaira dimension that admits a finite proper morphism to a…

Complex Variables · Mathematics 2007-05-23 Junjiro Noguchi , Jörg Winkelmann , Katsutoshi Yamanoi

In this article, we functorially associate definable sets to $k$-analytic curves, and definable maps to analytic morphisms between them, for a large class of $k$-analytic curves. Given a $k$-analytic curve $X$, our association allows us to…

Algebraic Geometry · Mathematics 2023-06-22 Pablo Cubides Kovacsics , Jérôme Poineau

For a domain $D\subset {\Bbb{C}}^n$ we construct a continuous foliation of $D$ into one real dimensional curves such that any function $f\in {C^1(D)}$ which can be extended holomorphically into some neighborhood of each curve in the…

Complex Variables · Mathematics 2011-01-24 Buma L. Fridman , Daowei Ma

We investigate the growth of the Nevanlinna Characteristic of f(z+\eta) for a fixed \eta in this paper. In particular, we obtain a precise asymptotic relation between T(r,f(z+\eta) and T(r,f), which is only true for finite order meromorphic…

Complex Variables · Mathematics 2008-05-09 Y. M. Chiang , S. J. Feng

This paper re-develops the Nevanlinna theory for meromorphic functions on $\mathbb C$ in the viewpoint of holomorphic forms. According to our observation, Nevanlinna's functions can be formulated by a holomorphic form. Applying this thought…

Complex Variables · Mathematics 2022-08-31 Xianjing Dong , Shuangshuang Yang

We survey and expand on the work of Segal, Milgram and the author on the topology of spaces of maps of positive genus curves into $n$-th complex projective space, $n\geq 1$ (in both the holomorphic and continuous categories). Both based and…

Mathematical Physics · Physics 2007-05-23 Sadok Kallel

In this paper we begin to study curves on a weighted projective plane with one trivial weight, ${\mathbb P}(1,m,n)$, by determining the genus of curves of Fermat type. These are curves defined by a ``homogeneous'' polynomial analagous to…

Algebraic Geometry · Mathematics 2007-10-23 Jeremiah M. Kermes

Our aim in this paper is to compute the Poincar\'{e} series of the derivation module of the projective closure of certain affine monomial curves.

Algebraic Geometry · Mathematics 2022-12-26 Joydip Saha , Indranath Sengupta , Pranjal Srivastava

We give a new proof of Mikhalkin's Theorem on the topological classification of simple Harnack curves, which in particular extends Mikhalkin's result to real pseudoholomorphic curves.

Algebraic Geometry · Mathematics 2015-04-21 Erwan Brugalle

A set of multi-homogeneous equations for the Jacobian of a genus two curve is given. The approach used is to write down affine equations for the Jacobian minus various tranlations of the Theta-divisor by [2]-division points, and then to…

Algebraic Geometry · Mathematics 2015-07-28 Mark Heiligman

In this paper, we study the Fu\v{c}\'{\i}k spectrum of a square matrix $A$ and provide necessary and sufficient conditions for the existence of Fu\v{c}\'{\i}k curves emanating from the point $(\lambda,\lambda)$ with $\lambda$ being a real…

Spectral Theory · Mathematics 2024-12-17 Gabriela Holubová , Petr Nečesal

Let $V$ be a hyperelliptic curve of genus 2 defined by $Y^2=f(X)$, where $f(X)$ is a polynomial of degree 5. The sigma function associated with $V$ is a holomorphic function on $\mathbb{C}^2$. For a point $P$ on $V$, we consider the problem…

Complex Variables · Mathematics 2024-03-15 Takanori Ayano

We establish a Second Main Theorem for entire holomorphic curves \( f: \mathbb{C} \to \mathbb{P}^2 \) intersecting a generic configuration of three conics \(\mathcal{C}= \mathcal{C}_1+ \mathcal{C}_2+ \mathcal{C}_3 \) in the complex…

Complex Variables · Mathematics 2026-01-21 Lei Hou , Dinh Tuan Huynh , Joël Merker , Song-Yan Xie

In this paper we consider a punctured Riemann surface endowed with a Hermitian metric that equals the Poincar\'e metric near the punctures, and a holomorphic line bundle that polarizes the metric. We show that the quotient of the induced…

Complex Variables · Mathematics 2025-06-17 Razvan Apredoaei , Xiaonan Ma , Lei Wang

A type of fractional derivative, referred to as \alpha-derivative, is studied. The \alpha-derivative of fractional type obeys Leibnitz rule. Based on the definition of \alpha-derivative the operations of analysis and differential geometry…

Mathematical Physics · Physics 2017-09-28 V. V. Kobelev

We study complex plane projective sextic curves with simple singularities up to equisingular deformations. It is shown that two such curves are deformation equivalent if and only if the corresponding pairs are diffeomorphic. A way to…

Algebraic Geometry · Mathematics 2008-03-21 Alex Degtyarev

We study the existence of canonical K\"ahler metrics on the projectivisation of strictly Mumford semistable holomorphic vector bundles over a complex curve. We also provide an algebro-geometric characterization of these metrics.

Differential Geometry · Mathematics 2017-05-17 Julien Keller

We study analysis over infinite dimensional manifolds consisted by sequences of almost K\"ahler manifolds. In particular we develop moduli theory of pseudo holomorphic curves into the spaces with high symmetry. As applications, we study…

Symplectic Geometry · Mathematics 2017-11-08 Tsuyoshi Kato