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In this paper we provide sufficient conditions for maps of vector bundles on smooth projective varieties to be uniquely determined by their degeneracy schemes. We then specialize to holomorphic distributions and foliations. In particular,…

Algebraic Geometry · Mathematics 2018-10-15 Carolina Araujo , Maurício Corrêa

We study the topology of polynomial functions by deforming them generically. We explain how the non-conservation of the total ``quantity'' of singularity in the neighbourhood of infinity is related to the variation of topology in certain…

Algebraic Geometry · Mathematics 2007-05-23 Dirk Siersma , Mihai Tibar

We discuss an object from algebraic topology, Hopf invariant, and reinterpret it in terms of the $\phi$-mapping topological current theory. The main purpose in this paper is to present a new theoretical framework which can directly give the…

Mathematical Physics · Physics 2008-12-15 Ji-rong Ren , Ran Li , Yi-shi Duan

The main purpose of this paper is to study formal deformations of evolution algebras, determining their existence and classifying them up to equivalence. In addition, we examine degenerations in this setting and provide Hasse diagrams that…

Rings and Algebras · Mathematics 2025-12-09 Abdenacer Makhlouf , Andrés Pérez-Rodríguez

We discuss the AdS/CFT correspondence for negative curvature Einstein manifolds whose conformal boundary is degenerate in the sense that it is of codimension greater than one. In such manifolds, hypersurfaces of constant radius do not blow…

High Energy Physics - Theory · Physics 2007-05-23 Marika Taylor-Robinson

We study the geodesic X-ray transform on Cartan-Hadamard manifolds, and prove solenoidal injectivity of this transform acting on functions and tensor fields of any order. The functions are assumed to be exponentially decaying if the…

Differential Geometry · Mathematics 2019-09-06 Jere Lehtonen , Jesse Railo , Mikko Salo

We consider deformations of a conformal field theory that explicitly break some global symmetries of the theory. If the deformed theory is still a conformal field theory, one can exploit the constraints put by conformal symmetry to compute…

High Energy Physics - Theory · Physics 2017-08-10 Vladimir Bashmakov , Matteo Bertolini , Himanshu Raj

Let $(M, \mathcal{F})$ be a compact Riemannian foliated manifold. We consider a family of compatible Feller semigroups in $C(M^n)$ associated to laws of the $n$-point motion. Under some assumptions (Le Jan and Raimond, \cite{Le…

Probability · Mathematics 2013-06-04 Paulo Henrique P da Costa , Paulo R. Ruffino

Using the parameterisation of the deformation space of GHMC anti-de Sitter structures on $S \times \mathbb{R}$ by the cotangent bundle of the Teichm\"uller space of $S$, we study how some geometric quantities, such as the Lorentzian…

Differential Geometry · Mathematics 2024-12-10 Andrea Tamburelli

This article studies germs of holomorphic vector fields at the origin of C3 that are tangent to holomorphic foliations of codimension one. Two situations are considered. First, we assume hypotheses on the reduction of singularities of the…

Dynamical Systems · Mathematics 2018-12-07 Danúbia Junca , Rogério Mol

In dimensions greater than or equal to 3, the local structure of a singular holomorphic foliation conceals a globally defined foliation on the projective space of dimension one less. In this paper, we will discuss how the global dynamics of…

Dynamical Systems · Mathematics 2023-01-16 Julio C. Rebelo , Helena Reis

Deformation of morphisms along leaves of foliations define the tangential foliation on the corresponding space of morphisms. We prove that codimension one fo-liations having a tangential foliation with at least one non-algebraic leaf are…

Classical Analysis and ODEs · Mathematics 2021-02-23 Frank Loray , Jorge Pereira , Frédéric Touzet

We study holomorphic foliations tangent to singular real-analytic Levi-flat hypersurfaces in compact complex manifolds of complex dimension two. We give some hypotheses to guarantee the existence of dicritical singularities of these…

Complex Variables · Mathematics 2018-10-16 Andrés Beltrán , Arturo Fernández-Pérez , Hernán Neciosup

We define some new invariants for 3-manifolds using the space of taut codim-1 foliations along with various techniques from noncommutative geometry. These invariants originate from our attempt to generalise Topological Quantum Field…

Mathematical Physics · Physics 2017-01-24 Ioannis P. Zois

Let $\cal{F}$ be a regular codimension 1 holomorphic foliation on a compact K\" ahler manifold. One assumes in addition that $\cal{F}$ possesses a transverse invariant positive current. The aim of this paper is to establish the following…

Dynamical Systems · Mathematics 2014-09-12 Frederic Touzet

We introduce Hodge Diffusion Maps, a novel manifold learning algorithm designed to analyze and extract topological information from high-dimensional data-sets. This method approximates the exterior derivative acting on differential forms,…

Machine Learning · Computer Science 2025-04-11 Alvaro Almeida Gomez , Jorge Duque Franco

The purpose of this paper has twofold. The first is to establish a second main theorem with truncated counting functions for algebraically nondegenerate meromorphic mappings into an arbitrary projective variety intersecting a family of…

Complex Variables · Mathematics 2019-02-27 Si Duc Quang

We introduce the foliated anti-self dual equation for higher dimensional smooth manifolds with codimension-4 Riemannian foliations. Several fundamental results are established, towards the defining of a Donaldson type invariant for such…

Differential Geometry · Mathematics 2015-08-07 Shuguang Wang

We study Segre varieties associated to Levi-flat subsets in complex manifolds and apply them to establish local and global results on the integration of tangent holomorphic foliations.

Dynamical Systems · Mathematics 2017-05-30 Jane Bretas , Arturo Fernández-Pérez , Rogério Mol

We prove an extension criterion for codimension one foliations on projective hypersurfaces based on the degree of the foliation and the degree of the hypersurface, and we ensure, in some instances, an isomorphism between the corresponding…

Algebraic Geometry · Mathematics 2023-08-10 Mateus Gomes Figueira