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On the product of a complex manifold $X$ by a complex curve $S$ considered as a parameter space, we show a Riemann-Hilbert correspondence between regular holonomic relative $\mathcal D$-modules (resp. complexes) on the one hand and relative…

Algebraic Geometry · Mathematics 2022-08-09 Luisa Fiorot , Teresa Monteiro Fernandes , Claude Sabbah

Using the theory infinity-categories we construct derived (dg-)categories of regular, holonomic D-modules and algebraically constructible sheaves on a complex smooth algebraic stack. We construct a natural infinity-categorical equivalence…

Algebraic Geometry · Mathematics 2013-08-28 Alexander Paulin

We develop the theory of relative regular holonomic D-modules with a smooth complex manifold S of arbitrary dimension as parameter space, together with their main functorial properties. In particular, we establish in this general setting…

Algebraic Geometry · Mathematics 2024-02-13 Luisa Fiorot , Teresa Monteiro Fernandes , Claude Sabbah

This is a survey paper on the Riemann-Hilbert correspondence on (irregular) holonomic D-modules, based on the 16-th Takagi lecture (2015/11/28). In this paper, we use subanalytic sheaves, an analogous notion to the one of indsheaves.

Algebraic Geometry · Mathematics 2015-12-25 Masaki Kashiwara

In this short paper we prove a derived version of the Riemann-Hilbert correspondence of Deligne and Simpson. Our generalization is twofold: on one side we consider families of representations of the full homotopy type of a smooth analytic…

Algebraic Geometry · Mathematics 2017-03-14 Mauro Porta

The classical Riemann-Hilbert correspondence establishes an equivalence between the triangulated category of regular holonomic D-modules and that of constructible sheaves. In this paper, we prove a Riemann-Hilbert correspondence for…

Algebraic Geometry · Mathematics 2019-07-25 Andrea D'Agnolo , Masaki Kashiwara

Deligne's celebrated "Riemann--Hilbert correspondence" relates representations of the fundamental group of a smooth complex algebraic variety and regular-singular integrable connections. In this work, we show how to arrive at a similar…

Algebraic Geometry · Mathematics 2022-03-08 Phùng Hô Hai , João Pedro dos Santos

Motivated by the work of Kontsevich-Soibelman on the comparison of isomorphisms conjecture for closed algebraic $1$-forms, we establish a Riemann-Hilbert correspondence of Deligne-Malgrange type. As an application, we prove a variant of the…

Algebraic Geometry · Mathematics 2026-04-21 Yota Shamoto

The subject of this paper is an algebraic version of the irregular Riemann-Hilbert correspondence which was mentioned in [arXiv:1910.09954] by the author. In particular, we prove an equivalence of categories between the triangulated…

Algebraic Geometry · Mathematics 2020-06-26 Yohei Ito

Let X be a complex manifold. The classical Riemann-Hilbert correspondence associates to a regular holonomic system M the C-constructible complex of its holomorphic solutions. Denote by t the affine coordinate in the complex projective line.…

Algebraic Geometry · Mathematics 2013-05-20 Andrea D'Agnolo , Masaki Kashiwara

Based on the recent progress in the irregular Riemann-Hilbert correspondence for holonomic D-modules, we show that the characteristic cycles of some standard irregular holonomic D-modules can be expressed as in the classical theorem of…

Algebraic Geometry · Mathematics 2026-03-13 Kazuki Kudomi , Kiyoshi Takeuchi

Let $f:\CN \rightarrow \C $ be a polynomial map, which is transversal at infinity. Using Sabbah's specialization complex, we give a new description of the Alexander modules of the hypersurface complement $\CN\setminus f^{-1}(0)$, and obtain…

Algebraic Topology · Mathematics 2016-10-12 Yongqiang Liu

For a regular map $F$ from a complex smooth affine variety $X$ to $\mathbb A^r_\mathbb C$, we construct generalized nearby-cycle modules of a regular holonomic $\mathscr D$-module $\mathcal M$ along log strata with the log structure induced…

Algebraic Geometry · Mathematics 2026-05-29 Lei Wu , with an appendix by Claude Sabbah

We formulate and prove a Riemann-Hilbert correspondence between $\hbar$-differential equations and sheaf quantizations, which can be considered as a correspondence between two kinds of quantizations (deformation and sheaf quantization) of…

Symplectic Geometry · Mathematics 2022-02-10 Tatsuki Kuwagaki

We describe the category of regular holonomic modules over the ring D[[h]] of linear differential operators with a formal parameter h. In particular, we establish the Riemann-Hilbert correspondence and discuss the additional t-structure…

Algebraic Geometry · Mathematics 2011-08-09 Andrea D'Agnolo , Stephane Guillermou , Pierre Schapira

We describe an $A_\infty$-quasi-equivalence of dg-categories between the first authors' $\mathcal{P}_{\mathcal{A}}$ ---the category of category of prefect $A^0$-modules with flat $\Z$-connection, corresponding to the de Rham dga…

Algebraic Topology · Mathematics 2012-07-05 Jonathan Block , Aaron M. Smith

We give a Clifford correspondence for an algebra A over an algebraically closed field, that is an algorithm for constructing some finite-dimensional simple A-modules from simple modules for a subalgebra and endomorphism algebras. This…

Rings and Algebras · Mathematics 2007-05-23 Sarah J. Witherspoon

Beilinson--Bernstein localisation relates representations of a Lie algebra $\mathfrak{g}$ to certain $\mathcal{D}$-modules on the flag variety of $\mathfrak{g}$. In [arXiv:2002.01540], examples of $\mathfrak{sl}_2$-representations which…

Algebraic Geometry · Mathematics 2022-02-01 Julian Wykowski , Travis Schedler

The support S of Sabbah's specialization complex is a simultaneous generalization of the set of eigenvalues of the monodromy on Deligne's nearby cycles complex, of the support of the Alexander modules of an algebraic knot, and of certain…

Algebraic Geometry · Mathematics 2016-08-19 Nero Budur , Yongqiang Liu , Luis Saumell , Botong Wang

For a smooth, projective, complex algebraic variety $X$, the Riemann--Hilbert correspondence establishes a complex analytic isomorphism between the `Betti moduli space' of rank $n$ local systems on $X^\mathrm{an}$ and the `de Rham moduli…

Algebraic Geometry · Mathematics 2022-04-15 Abhishek Oswal
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