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We study a set of topological roots of the local Bernstein-Sato polynomial of arbitrary plane curve singularities. These roots are characterized in terms of certain divisorial valuations and the numerical data of the minimal log resolution.…

Algebraic Geometry · Mathematics 2024-07-24 Guillem Blanco

We introduce the notion of Bernstein-Sato polynomial of an arbitrary variety (which is not necessarily reduced nor irreducible), using the theory of V-filtrations of M. Kashiwara and B. Malgrange. We prove that the decreasing filtration by…

Algebraic Geometry · Mathematics 2007-05-23 Nero Budur , Mircea Mustata , Morihiko Saito

In 1982, Tamaki Yano proposed a conjecture predicting the set of b-exponents of an irreducible plane curve singularity germ which is generic in its equisingularity class. In \cite{ACLM-Yano2} we proved the conjecture for the case in which…

Algebraic Geometry · Mathematics 2016-11-04 E. Artal Bartolo , Pi. Cassou-Noguès , I. Luengo , A. Melle-Hernández

This is the second part of a work dedicated to the study of Bernstein-Sato polynomials for several analytic functions depending on parameters. In this part, we give constructive results generalizing previous ones obtained by the author in…

Algebraic Geometry · Mathematics 2007-05-23 Rouchdi Bahloul

We generalize the Bernstein-Sato polynomials of Budur, Mustata and Saito to ideals in normal semigroup rings. In the case of monomial ideals, we also relate the roots of the Bernstein-Sato polynomial to the jumping coefficients of the…

Algebraic Geometry · Mathematics 2016-08-15 Jen-Chieh Hsiao , Laura Felicia Matusevich

A couple of complex projective plane curves are said to make a Zariski pair if they have the same degree and the same type of singularities, but their embeddings in the projective plane are topologically different. In this paper, we present…

alg-geom · Mathematics 2008-02-03 Ichiro Shimada

The singularity theory of rational functions, i.e., the quotient of two polynomials, has been investigated in the past two decades. The Bernstein-Sato polynomial of a rational function has recently been introduced by Takeuchi. However, only…

Algebraic Geometry · Mathematics 2026-02-04 Manuel González-Villa , Edwin León-Cardenal , Viktor Levandovskyy , Jorge Martín-Morales

We develop a theory of Bernstein-Sato polynomials for meromorphic functions and we use it to study the analytic continuation of Archimedian local zeta functions in this setting. We also introduce both an analytic and an algebraic theory of…

We study the Jacobian scheme of a plane algebraic curve at an ordinary singularity, characterizing it through a geometric property. We compute the Tjurina number for a family of curves at an ordinary singularity showing that it reaches the…

Algebraic Geometry · Mathematics 2024-02-08 Stefano Canino , Alessandro Gimigliano , Monica Idà

We show that the Bernstein-Sato polynomial (that is, the b-function) of a hyperplane arrangement with a reduced equation is calculable by combining a generalization of Malgrange's formula with the theory of Aomoto complexes due to Esnault,…

Algebraic Geometry · Mathematics 2016-06-14 Morihiko Saito

We study a family of polynomials in two variables having moduli up to bilipschitz equivalence: two distinct polynomials of this family are not bilipschitz equivalent. However any level curve of the first polynomial is bilipschitz equivalent…

Geometric Topology · Mathematics 2020-02-25 Arnaud Bodin

We prove several theorems concerning arithmetic properties of Stern polynomials defined in the following way: $B_{0}(t)=0, B_{1}(t)=1, B_{2n}(t)=tB_{n}(t)$, and $B_{2n+1}(t)=B_{n}(t)+B_{n+1}(t)$. We study also the sequence…

Combinatorics · Mathematics 2011-02-28 Maciej Ulas , Oliwia Ulas

For a homogeneous polynomial of $n$ variables, we present a new method to compute the roots of Bernstein-Sato polynomial supported at the origin, assuming that general hyperplane sections of the associated projective hypersurface have at…

Algebraic Geometry · Mathematics 2019-07-16 Morihiko Saito

In this paper we give a complete answer to a question posed by Dimca and Greuel about the quotient of the Milnor and Tjurina numbers of a plane curve singularity. We put this question into a general framework of the study of the difference…

Algebraic Geometry · Mathematics 2021-09-13 Patricio Almirón

We compute the Poincar\'e polynomials of the compactified Jacobians for plane curve singularities with Puiseaux exponents $(nd,md,md+1)$, and relate them to the combinatorics of $q,t$-Catalan numbers in the non-coprime case. We also confirm…

Algebraic Geometry · Mathematics 2024-06-21 Eugene Gorsky , Mikhail Mazin , Alexei Oblomkov

We consider the Bernstein--Sato polynomial of a locally quasi-homogeneous polynomial $f \in R = \mathbb{C}[x_{1}, x_{2}, x_{3}]$. We construct, in the analytic category, a complex of $\mathscr{D}_{X}[s]$-modules that can be used to compute…

Algebraic Geometry · Mathematics 2024-12-02 Daniel Bath

This is an expository survey on the theory of Bernstein-Sato polynomials with special emphasis in its recent developments and its importance in commutative algebra.

Commutative Algebra · Mathematics 2021-08-24 Josep Àlvarez Montaner , Jack Jeffries , Luis Núñez-Betancourt

In this paper we prove an asymptotically sharp Bernstein-type inequality for polynomials on analytic Jordan arcs. Also a general statement on mapping of a domain bounded by finitely many Jordan curves onto a complement to a system of the…

Complex Variables · Mathematics 2015-06-05 Sergei Kalmykov , Béla Nagy

We present some results concerning the Saito module and the torsion submodule of an analytic plane curve, and we provide a method for computing them. Using this algorithm, we compute analytic invariants for plane curves with multiplicity…

Algebraic Geometry · Mathematics 2025-05-27 Emilio de Carvalho , Percy Fernández-Sánchez , Marcelo Escudeiro Hernandes

Given $p$ polynomials with coefficients in a commutative unitary integral ring $\mathcal{C}$ containing $\mathbb{Q}$, we define the notion of a generic Bernstein-Sato polynomial on an irreducible affine scheme $V \subset…

Algebraic Geometry · Mathematics 2007-05-23 Rouchdi Bahloul
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