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We calculate Bernstein-Sato b-functions for $f_{G^3}^\lambda$, a $SL_n$-invariant section of a line bundle on $SL_n/B \times SL_n/B \times \mathbb{P}^{n - 1}$ whose zero-set is the complement of the open $G$-diagonal orbit. The proof uses a…

Representation Theory · Mathematics 2015-07-01 Henry Scher

We present a new approach to the study of multiplier ideals in a local, two-dimensional setting. Our method allows us to deal with ideals, graded systems of ideals and plurisubharmonic functions in a unified way. Among the applications are…

Complex Variables · Mathematics 2007-05-23 Charles Favre , Mattias Jonsson

We give estimates for the zero loci of Bernstein-Sato ideals. An upper bound is proved as a multivariate generalisation of the upper bound by Lichtin for the roots of Bernstein-Sato polynomials. The lower bounds generalise the fact that…

Algebraic Geometry · Mathematics 2023-01-13 Nero Budur , Robin van der Veer , Alexander Van Werde

We give a combinatorial description of the roots of the Bernstein-Sato polynomial of a monomial ideal using the Newton polyhedron and some semigroups associated to the ideal.

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

We generalize the Gr\"obner basis method for free D-modules to the case of several term orderings induced by a partition of the set of basic variables. Using this generalized Gr\"obner basis technique we prove the existence and give a…

Commutative Algebra · Mathematics 2024-04-03 Alexander Levin

Recently, all Birch and Swinnerton-Dyer invariants, except for the order of Sha, have been computed for all curves of genus 2 contained in the L-functions and Modular Forms Database. This report explains the improvements made to the…

Number Theory · Mathematics 2023-09-06 Raymond van Bommel

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

In analogy with the complex analytic case, Musta\c{t}\u{a} constructed (a family of) Bernstein-Sato polynomials for the structure sheaf $\mathcal{O}_X$ and a hypersurface $(f=0)$ in $X$, where $X$ is a regular variety over an $F$-finite…

Commutative Algebra · Mathematics 2015-04-22 Manuel Blickle , Axel Stäbler

In this mostly expository note we give a down-to-earth introduction to the V-filtration of M. Kashiwara and B. Malgrange on D-modules. We survey some applications to generalized Bernstein-Sato polynomials, multiplier ideals, and monodromy…

Algebraic Geometry · Mathematics 2007-05-23 Nero Budur

We prove the multiplicative Thom-Sebastiani rule for Bernstein-Sato polynomials, answering the longstanding questions of Budur and Popa. We generalize the result to the tensor of two effective divisors on the product of two arbitrary…

Algebraic Geometry · Mathematics 2024-06-11 Quan Shi , Huaiqing Zuo

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 compute the Bernstein-Sato polynomial of $f$, a function which given a pair $(M,v)$ in $X = M_n(\mathbf{C}) \times \mathbf{C}^n$ tests whether $v$ is a cyclic vector for $M$. The proof includes a description of shift operators…

Representation Theory · Mathematics 2015-01-13 Robin Walters

We study existence and computability of finite bases for ideals of polynomials over infinitely many variables. In our setting, variables come from a countable logical structure A, and embeddings from A to A act on polynomials by renaming…

Logic in Computer Science · Computer Science 2026-05-21 Arka Ghosh , Sławomir Lasota

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

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

We study the structure of $D$-modules over a ring $R$ which is a direct summand of a polynomial or a power series ring $S$ with coefficients over a field. We relate properties of $D$-modules over $R$ to $D$-modules over $S$. We show that…

Commutative Algebra · Mathematics 2016-11-15 Josep Àlvarez Montaner , Craig Huneke , Luis Núñez-Betancourt

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

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

A new algorithm is presented for computing the largest degree invariant factor of the Sylvester matrix (with respect either to $x$ or $y$) associated to two polynomials $a$ and $b$ in $\mathbb F_q[x,y]$ which have no non-trivial common…

Symbolic Computation · Computer Science 2023-02-20 Gilles Villard

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