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We prove some sufficient conditions in order that a root of the Bernstein-Sato polynomial contributes to a difference between certain D-modules generated by rational powers of a holomorphic function; for instance, this holds in the case of…

Algebraic Geometry · Mathematics 2019-03-12 Morihiko Saito

We prove a conjecture of the first author relating the Bernstein-Sato ideal of a finite collection of multivariate polynomials with cohomology support loci of rank one complex local systems. This generalizes a classical theorem of Malgrange…

Algebraic Geometry · Mathematics 2020-11-30 Nero Budur , Robin van der Veer , Lei Wu , Peng Zhou

Given a family of analytic functions near 0 \in C^n parametrized by a smooth space, we study the Bernstein polynomial of the fiber on an irreducible variety V of the space of parameters and we show that it is generically constant. We prove…

Algebraic Geometry · Mathematics 2016-09-07 Rouchdi Bahloul

In 1987, C. Sabbah proved the existence of Bernstein-Sato polynomials associated with several analytic functions. The purpose of this article is to give a more elementary and constructive proof of the result of C. Sabbah based on the notion…

Rings and Algebras · Mathematics 2007-05-23 Rouchdi Bahloul

We present a quite efficient method to calculate the roots of Bernstein-Sato polynomial for a defining polynomial $f$ of a projective hypersurface $Z\subset{\mathbb P}^{n-1}$ of degree $d$ having only weighted homogeneous isolated…

Algebraic Geometry · Mathematics 2025-11-21 Morihiko Saito

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

A function that is analytic on a domain of $\mathbb{C}^n$ is holonomic if it is the solution to a holonomic system of linear homogeneous differential equations with polynomial coefficients. We define and study the Bernstein-Sato polynomial…

Algebraic Geometry · Mathematics 2021-02-02 András Cristian Lőrincz

We determine the Bernstein-Sato polynomials for the ideal of maximal minors of a generic m x n matrix, as well as for that of sub-maximal Pfaffians of a generic skew-symmetric matrix of odd size. As a corollary, we obtain that the Strong…

Algebraic Geometry · Mathematics 2017-08-15 András C. Lőrincz , Claudiu Raicu , Uli Walther , Jerzy Weyman

This paper investigates the existence and properties of a Bernstein-Sato functional equation in nonregular settings. In particular, we construct $D$-modules in which such formal equations can be studied. The existence of the Bernstein-Sato…

Let $G$ be a linearly reductive group acting on a vector space $V$, and $f$ a (semi-)invariant polynomial on $V$. In this paper we study systematically decompositions of the Bernstein-Sato polynomial of $f$ in parallel with some…

Representation Theory · Mathematics 2018-02-23 András Cristian Lőrincz

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…

Conjectures of J. Igusa for p-adic local zeta functions and of J. Denef and F. Loeser for topological local zeta functions assert that (the real part of) the poles of these local zeta functions are roots of the Bernstein-Sato polynomials…

Algebraic Geometry · Mathematics 2014-02-26 Nero Budur , Morihiko Saito , Sergey Yuzvinsky

In this survey, we use (more or less) elementary means to establish the well-known result that for any given smooth multivariate function, the respective multivariate Bernstein polynomials converge to that function in all derivatives on…

Classical Analysis and ODEs · Mathematics 2016-09-08 Adrian Fellhauer

For fixed prime integer $p > 0$ we develop a notion of Bernstein-Sato polynomial for polynomials with $\mathbb{Z} / p^m$-coefficients, compatible with existing theory in the case $m = 1$. We show that the ``roots" of such polynomials are…

Commutative Algebra · Mathematics 2026-05-27 Thomas Bitoun , Eamon Quinlan-Gallego

The Bernstein-Sato polynomial is an important invariant of an element or an ideal in a polynomial ring or power series ring of characteristic zero, with interesting connections to various algebraic and topological aspects of the…

Commutative Algebra · Mathematics 2023-02-24 Jack Jeffries , Luis Núñez-Betancourt , Eamon Quinlan-Gallego

The monodromy conjecture is an umbrella term for several conjectured relationships between poles of zeta functions, monodromy eigenvalues and roots of Bernstein-Sato polynomials in arithmetic geometry and singularity theory. Even the…

Algebraic Geometry · Mathematics 2022-03-30 Alexander Esterov , Ann Lemahieu , Kiyoshi Takeuchi

We provide explicit formulae for the coefficients of the order-d polynomial subresultant of (x-\alpha)^m and (x-\beta)^n with respect to the set of Bernstein polynomials \{(x-\alpha)^j(x-\beta)^{d-j}, \, 0\le j\le d\}. They are given by…

Commutative Algebra · Mathematics 2017-04-19 Alin Bostan , Carlos D'Andrea , Teresa Krick , Agnes Szanto , Marcelo Valdettaro

Given two holomorphic functions $f$ and $g$ defined in two respective germs of complex analytic manifolds $(X,x)$ and $(Y,y)$, we know thanks to M. Saito that, as long as one of them is Euler homogeneous, the reduced (or microlocal)…

Algebraic Geometry · Mathematics 2023-09-11 Alberto Castaño Domínguez , Luis Narváez Macarro

We show that if $f\in \mathcal{O}_X(X)$ and $g\in \mathcal{O}_Y(Y)$ are nonzero regular functions on smooth complex algebraic varieties $X$ and $Y$, then the Bernstein-Sato polynomial of the product function $fg \in \mathcal{O}_{X\times…

Algebraic Geometry · Mathematics 2024-10-31 Jonghyun Lee

Let n and d be positive integers, let k be a field and let P(n,d;k) be the space of the polynomials in n variables of degree at most d with coefficients in k. Let B(n,d) be the set of the Bernstein-Sato polynomials of all polynomials in…

Algebraic Geometry · Mathematics 2007-05-23 Anton Leykin