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We determine the number of singularities - counted whit multiplicities - of generic distributions of dimension and codimension one on smooth complete intersections in compact toric orbifolds with isolated singularities. We also present some…

Algebraic Geometry · Mathematics 2025-12-30 Miguel Rodríguez Peña

We consider the global symplectic classification problem of plane curves. First we give the exact classification result under symplectomorphisms, for the case of generic plane curves, namely immersions with transverse self-intersections.…

Differential Geometry · Mathematics 2007-05-23 Goo Ishikawa

We establish an arithmetic intersection theory in the framework of Arakelov geometry over adelic curves. To each projective scheme over an adelic curve, we associate a multi-homogenous form on the group of adelic Cartier divisors, which can…

Algebraic Geometry · Mathematics 2022-07-05 Huayi Chen , Atsushi Moriwaki

It is proved in this paper that a locally complete intersection curve in a smooth affine C-algebra with trival conormal bundle is a set theoretic complete intersection if its corresponding class in the Grothendieck Group is torsion.

Commutative Algebra · Mathematics 2016-09-07 Ze Min Zeng

We prove a first principle of preservation of multiplicity in difference geometry, paving the way for the development of a more general intersection theory. In particular, the fibres of a \sigma-finite morphism between difference curves are…

Algebraic Geometry · Mathematics 2011-12-06 Ivan Tomasic

This paper explores the relationship between closed curves on surfaces and their intersections. Like Dehn-Thurston coordinates for simple curves, we explore how to determine closed curves using the number of times they intersect other…

Geometric Topology · Mathematics 2023-08-29 Hugo Parlier , Binbin Xu

Given two curves in $\PP^3$, either implicitly or by a parameterization, we want to check if they intersect. For that purpose, we present and further develop generalized resultant techniques. Our aim is to provide a closed formula in the…

Algebraic Geometry · Mathematics 2007-05-23 Laurent Buse , Andre Galligo

In this paper, we develop a new approach to the discrimi-nant of a complete intersection curve in the 3-dimensional projective space. By relying on the resultant theory, we first prove a new formula that allows us to define this…

Symbolic Computation · Computer Science 2017-02-07 Laurent Busé , Ibrahim Nonkané

The equivalence problem of curves with values in a Riemannian manifold, is solved. The domain of validity of Frenet's theorem is shown to be the spaces of constant curvature. For a general Riemannian manifold new invariants must thus be…

Differential Geometry · Mathematics 2012-07-20 M. Castrillon Lopez , V. Fernandez Mateos , J. Munoz Masque

We give a solution of Plateau's problem for singular curves possibly having self-intersections. The proof is based on the solution of Plateau's problem for Jordan curves in very general metric spaces by Alexander Lytchak and Stefan Wenger…

Differential Geometry · Mathematics 2019-04-30 Paul Creutz

We generalize the classical Bernstein-Gelfand-Gelfand correspondence to complete intersections in toric varieties.

Representation Theory · Mathematics 2007-06-12 Vladimir Baranovsky

This paper deals with a complete invariant $R_X$ for cyclic quotient surface singularities. This invariant appears in the Riemann Roch and Numerical Adjunction Formulas for normal surface singularities. Our goal is to give an explicit…

Algebraic Geometry · Mathematics 2015-03-10 Jose I. Cogolludo-Agustin , Jorge Martin-Morales

The aim of this survey is to explore complete intersection monomial curves from a contemporary perspective. The main goal is to help readers understand the intricate connections within the field and its potential applications. The…

Commutative Algebra · Mathematics 2025-07-18 Patricio Almirón

Kontsevich's work on Airy matrix integrals has led to explicit results for the intersection numbers of the moduli space of curves. In this article we show that a duality between k-point functions on $N\times N$ matrices and N-point…

High Energy Physics - Theory · Physics 2008-11-26 E. Brezin , S. Hikami

Discretization of curves is an ancient topic. Even discretization of curves with an eye toward differential geometry is over a century old. However there is no general theory or methodology in the literature, despite the ubiquitous use of…

Differential Geometry · Mathematics 2013-11-25 Daniel Carroll , Eleanor Hankins , Emek Köse , Ivan Sterling

We obtain a sharp bound on the number of self-intersections of a closed planar curve with trigonometric parameterization. Moreover, we show that a generic curve of this form is normal in the sense of Whitney.

Complex Variables · Mathematics 2024-12-10 Sergei Kalmykov , Leonid V. Kovalev

Oriented closed curves on an orientable surface with boundary are described up to continuous deformation by reduced cyclic words in the generators of the fundamental group and their inverses. By self-intersection number one means the…

Geometric Topology · Mathematics 2011-08-03 Moira Chas , Steven P. Lalley

In this paper we produce infinitely many examples of set-theoretic complete intersection monomial curves in $\mathbb{P}^{n+1}$, starting with a set-theoretic complete intersection monomial curve in $\mathbb{P}^{n}$ . In most of the cases…

Algebraic Geometry · Mathematics 2008-05-30 Mesut Sahin

We bound the genus of a projective curve lying on a complete intersection surface in terms of its degree and the degrees of the defining equations of the surface on which it lies.

Algebraic Geometry · Mathematics 2014-09-04 Rebecca Tramel

In this paper we examine different problems regarding complete intersection varieties of high degree in a complex projective space. First we show how one can deduce hyperbolicity for generic complete intersection of high multidegree and…

Algebraic Geometry · Mathematics 2019-02-20 Damian Brotbek