English
Related papers

Related papers: Blow-Nash types of simple singularities

200 papers

In this paper we introduce new classes of gluing of complex analytic spaces germs, called weakly large, large and strongly large. We give a description of their Poincar\'e series and, as applications, we give numerical criteria to determine…

Algebraic Geometry · Mathematics 2024-12-25 T. H. Freitas , J. A. Lima

A notion of Milnor fibration for meromorphic functions and the corresponding concepts of monodromy and monodromy zeta function have been introduced in [GZLM1]. In this article we define the topological zeta function for meromorphic germs…

Algebraic Geometry · Mathematics 2013-01-22 Manuel González Villa , Ann Lemahieu

For a germ $(X,0) \subset (\mathbb{C}^n,0)$ of reduced, equidimensional complex analytic singularity its Nash modification can be constructed as an analytic subvariety $ Z \subset \mathbb{C}^n \times G(k,n)$. We give a characterization of…

Algebraic Geometry · Mathematics 2016-08-29 Arturo Giles Flores

We undertake a systematic study of Lipschitz Normally Embedded normal complex surface germs. We prove in particular that the topological type of such a germ determines the combinatorics of its minimal resolution which factors through the…

Algebraic Geometry · Mathematics 2022-06-01 André Belotto da Silva , Lorenzo Fantini , Anne Pichon

Let d be a positive integer. We show a finiteness theorem for semialgebraic RL triviality of a Nash family of Nash functions defined on a Nash manifold, generalising Benedetti-Shiota's finiteness theorem for semialgebraic RL equivalence…

Algebraic Geometry · Mathematics 2021-06-21 Satoshi Koike , Laurentiu Paunescu

T. Mostowski showed that every (real or complex) germ of an analytic set is homeomorphic to the germ of an algebraic set. In this paper we show that every (real or complex) analytic function germ, defined on a possibly singular analytic…

Algebraic Geometry · Mathematics 2014-01-23 Marcin Bilski , Adam Parusinski , Guillaume Rond

We introduce conditions on cones of normal toric varieties under which the polyhedron defining the normalized Nash blowup does not depend on the characteristic of the base field. As a consequence, we deduce several results on the resolution…

Algebraic Geometry · Mathematics 2025-01-27 Federico Castillo , Daniel Duarte , Maximiliano Leyton-Álvarez , Alvaro Liendo

We prove that a germ of a finite morphism of smooth surfaces is rigid if the germ of its branch curve has one of $ADE$-singularity types and establish a correspondence between the set of rigid germs and the set of Belyi rational functions…

Algebraic Geometry · Mathematics 2021-02-03 Vik. S. Kulikov

We give a simplified algorithm of the functorial weak factorization of birational morphisms of nonsingular varieties over a field of characteristic zero into a composite of blow-ups and blow-downs with smooth centers.

Algebraic Geometry · Mathematics 2007-05-23 Jaroslaw Wlodarczyk

The break-by-one gamma distribution has a probability density function resembling the Schechter function, but with the small-argument behavior modified so it is normalizable in commonly arising cases where the Schechter function is not. Its…

Cosmology and Nongalactic Astrophysics · Physics 2020-07-31 Thomas J. Loredo

This paper deals with the Nash problem, which consists in proving that the number of families of arcs on a singular germ of a surface $S$ coincides with the number of irreducible components of the exceptional divisor in the minimal…

Algebraic Geometry · Mathematics 2010-11-11 Camille Plénat , Mark Spivakovsky

We give a new proof of the classification of normal singular surface germs admitting non-invertible holomorphic self-maps and due to J. Wahl. We then draw an analogy between the birational classification of singular holomorphic foliations…

Algebraic Geometry · Mathematics 2010-03-16 Charles Favre

For a one-parameter deformation of an analytic complex function germ of several variables, there is defined its monodromy zeta-function. We give a Varchenko type formula for this zeta-function if the deformation is non-degenerate with…

Algebraic Geometry · Mathematics 2010-11-25 Gleb G. Gusev

We prove that, for the jet scheme of a singular hypersurface, the blowup of a certain jet-related module is not an isomorphism. In conjunction with recent developments in the theory of Nash blowups, our result holds over fields of arbitrary…

Algebraic Geometry · Mathematics 2022-05-10 Paul Barajas , Daniel Duarte

A set of Morse numbers is associated to a holomorphic function germ with stratified isolated singularity, extending the classical Milnor number to the setting of a singular base space.

Complex Variables · Mathematics 2024-03-04 Laurentiu Maxim , Mihai Tibăr

This article is devoted to studying multiplicity and regularity of real analytic sets. We present an equivalence for real analytic sets, named blow-spherical equivalence, which generalizes differential equivalence and subanalytic…

Algebraic Geometry · Mathematics 2021-05-21 José Edson Sampaio

Let (S,0) be a germ of complex analytic normal surface. On its minimal resolution, we consider the reduced exceptional divisor E and its irreducible components E_i. The Nash map associates to each irreducible component C_k of the space of…

Algebraic Geometry · Mathematics 2009-09-15 Camille Plenat , Patrick Popescu-Pampu

The Nash blowing-up (or modification) of an algebraic variety $X$ is a canonical process that produces a proper, birational morphism $\pi : X' \to X$ of varieties. It is expected that the singularities of $X'$ will be better than those of…

Algebraic Geometry · Mathematics 2024-04-16 A. Nobile

We construct the analytic lattice cohomology associated with the analytic type of any complex normal surface singularity. It is the categorification of the geometric genus of the germ, whenever the link is a rational homology sphere. It is…

Algebraic Geometry · Mathematics 2021-08-30 Tamás Ágoston , András Némethi

We construct the equivariant analytic lattice cohomology associated with the analytic type of a complex normal surface singularity whenever the link is a rational homology sphere. It is the categorification of the equivariant geometric…

Algebraic Geometry · Mathematics 2021-08-31 Tamás Ágoston , András Némethi