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We define the notions of micro-support and regularity for ind-sheaves, and prove their invariance by contact transformations. We apply the results to the ind-sheaves of temperate holomorphic solutions of D-modules. We prove that the…

Algebraic Geometry · Mathematics 2007-05-23 Masaki Kashiwara , Pierre Schapira

Let $X$ be a complex manifold. In "Microlocal study of Ind-sheaves I: microsupport and regularity", M. Kashiwara e P. Schapira made the conjecture that a holonomic D-module $\shm$ is regular holonomic if and only if…

Algebraic Geometry · Mathematics 2007-05-23 Ana Rita Martins

We introduce the notion of strong regularity for subanalytic sheaves and establish estimates for the supports and microsupports of their multi-microlocalizations. As applications, we study subanalytic sheaves of Whit- ney and temperate…

Complex Variables · Mathematics 2026-03-12 Ryosuke Sakamoto

This is an announcement of a long paper in progress. On a locally compact space, we introduce the stack of ind-sheaves (ind-objects of the category of sheaves with compact support) and construct the analogous of the usual six operations on…

Algebraic Geometry · Mathematics 2007-05-23 Masaki Kashiwara , Pierre Schapira

We prove that the k-truncated microsupport of the specialization of a complex of sheaves $F$ along a submanifold is contained in the normal cone to the conormal bundle along the k-truncated microsupport of $F$. In the complex case, applying…

Algebraic Geometry · Mathematics 2007-05-23 Ana Rita Martins , Teresa Monteiro Fernandes

Let $f:X\to Y$ be a smooth morphism of complex analytic manifolds and let $F$ be an $\mathbb{R}$-constructible complex on $Y$. Let $\cal{M}$ be a coherent $\shd_X$-module. We prove that the microsupport of the solution complex of $\shm$ in…

Algebraic Geometry · Mathematics 2013-01-16 Teresa Monteiro Fernandes

These three lectures present some fundamental and classical aspects of microlocal analysis. Starting with the Sato's microlocalization functor and the microsupport of sheaves, we then construct a microlocal analogue of the Hochschild…

Algebraic Geometry · Mathematics 2013-12-18 Pierre Schapira

We study the truncated microsupport $Ss_k$ of sheaves on a real manifold. Applying our results to the case of $F=RHom_D(M,O)$, the complex of holomorphic solutions of a coherent $D$-module $M$, we show that $Ss_k(F)$ is completely…

Algebraic Geometry · Mathematics 2015-12-22 Masaki Kashiwara , Teresa Monteiro Fernandes , Pierre Schapira

On a complex manifold, the embedding of the category of regular holonomic D-modules into that of holonomic D-modules has a left quasi-inverse functor $\mathcal{M}\mapsto\mathcal{M}_{\mathrm{reg}}$, called regularization. Recall that…

Algebraic Geometry · Mathematics 2021-07-13 Andrea D'Agnolo , Masaki Kashiwara

Let X be a C-infinity manifold. We construct a microlocalization functor $\mu_X$ from the derived category of bounded complexes of ind-sheaves on X to the one on the cotangent bundle of X. This functor generalizes the classical theory of…

Algebraic Geometry · Mathematics 2007-05-23 M. Kashiwara , Pierre Schapira , F. Ivorra , I. Waschkies

For any holomorphic function $f\colon X\to \mathbb{C}$ on a complex manifold $X$, we define and study moderate growth and rapid decay objects associated to an enhanced ind-sheaf on $X$. These will be sheaves on the real oriented blow-up…

Algebraic Geometry · Mathematics 2023-07-17 Brian Hepler , Andreas Hohl

We study continuous maps between differential manifolds from a microlocal point of view. In particular, we characterize the Lipschitz continuity of these maps in terms of the microsupport of the constant sheaf on their graph. Furthermore,…

Algebraic Geometry · Mathematics 2018-11-27 Benoit Jubin

We establish several results combining discrete Morse theory and microlocal sheaf theory in the setting of finite posets and simplicial complexes. Our primary tool is a computationally tractable description of the bounded derived category…

General Topology · Mathematics 2025-06-11 Adam Brown , Ondrej Draganov

We introduce the notion of Mukai regularity (M-regularity) for coherent sheaves on abelian varieties. The definition is based on the Fourier-Mukai transform, and in a special case depending on the choice of a polarization it parallels and…

Algebraic Geometry · Mathematics 2007-05-23 Giuseppe Pareschi , Mihnea Popa

Microlocal sheaf theory of \cite{KS90} makes an essential use of an extension lemma for sheaves due to Kashiwara, and this lemma is based on a criterion of the same author giving conditions in order that a functor defined in $\mathbb{R}$…

Algebraic Geometry · Mathematics 2016-11-22 Marco Robalo , Pierre Schapira

The aim of this paper is to develop a theory of microdifferential operators for arithmetic $\mathscr{D}$-modules. We first define the sheaves of microdifferential operators of arbitrary levels on arbitrary smooth formal schemes. A…

Algebraic Geometry · Mathematics 2014-03-13 Tomoyuki Abe

We study the dualizability of sheaves on manifolds with isotropic singular supports $\operatorname{Sh}_\Lambda(M)$ and microsheaves with isotropic supports $\operatorname{\mu sh}_\Lambda(\Lambda)$ and obtain a classification result of…

Symplectic Geometry · Mathematics 2025-04-04 Christopher Kuo , Wenyuan Li

In this paper we prove the constructibility on the subanalytic sites of the sheaves of tempered holomorphic solutions of holonomic D-modules on complex analytic manifolds. Such a result solves a conjecture of M. Kashiwara and P. Schapira…

Algebraic Geometry · Mathematics 2013-11-27 Giovanni Morando

In Asterisque 271 the authors introduced the notion of ind-sheaf, and defined the six Grothendieck operations in this framework. They defined subanalytic sheaves and they obtained the formalism of the six Grothendieck operations by…

Algebraic Geometry · Mathematics 2012-03-02 Luca Prelli

The main goal of the paper is to generalize Castelnuovo-Mumford regularity for coherent sheaves on projective spaces to coherent sheaves on $n$-dimensional smooth projective varieties $X$ with an $n$-block collection $\cB $ which generates…

Algebraic Geometry · Mathematics 2007-05-23 L. Costa , R. M. Miró-Roig
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