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We show that all integrally closed ideals on log terminal surfaces are multiplier ideals by extending an existing proof for smooth surfaces.

Commutative Algebra · Mathematics 2008-09-19 Kevin Tucker

In this article, we obtain an effectiveness result of strong openness property in $L^p$ with some applications.

Complex Variables · Mathematics 2022-01-17 Qi'an Guan , Zheng Yuan

In this note, we present the concavity of the minimal $L^2$ integrals related to multiplier ideals sheaves on Stein manifolds. As applications, we obtain a necessary condition for the concavity degenerating to linearity, a characterization…

Complex Variables · Mathematics 2021-06-14 Qi'an Guan , Zhitong Mi

The optimization of shape functionals under convexity, diameter or constant width constraints shows numerical challenges. The support function can be used in order to approximate solutions to such problems by finite dimensional optimization…

Optimization and Control · Mathematics 2021-11-01 Pedro R. S. Antunes , Beniamin Bogosel

We use methods from birational geometry to study the Hodge and weight filtrations on the localization along a hypersurface. We focus on the lowest piece of the Hodge filtration of the submodules arising from the weight filtration. This…

Algebraic Geometry · Mathematics 2022-08-08 Sebastian Olano

In this paper, a strong variant for multivalued mappings of the well-known property of openness at a linear rate is studied. Among other examples, a simply characterized class of closed convex processes between Banach spaces, which…

Optimization and Control · Mathematics 2015-12-14 A. Uderzo

In this article, we consider minimal $L^2$ integrals on the sublevel sets of plurisubharmonic functions on weakly pseudoconvex K\"ahler manifolds with Lebesgue measurable gain related to modules at boundary points of the sublevel sets, and…

Complex Variables · Mathematics 2022-06-06 Qi'an Guan , Zhitong Mi , Zheng Yuan

For a family of weight functions invariant under a finite reflection group, the boundedness of a maximal function on the unit sphere is established and used to prove a multiplier theorem for the orthogonal expansions with respect to the…

Classical Analysis and ODEs · Mathematics 2007-05-23 Feng Dai , Yuan Xu

The goal of this contribution is to investigate L${}^2$ extension properties for holomorphic sections of vector bundles satisfying weak semi-positivity properties. Using techniques borrowed from recent proofs of the Ohsawa-Takegoshi…

Complex Variables · Mathematics 2015-10-20 Jean-Pierre Demailly

We investigate the approximation of weighted integrals over $\mathbb{R}^d$ for integrands from weighted Sobolev spaces of mixed smoothness. We prove upper and lower bounds of the convergence rate of optimal quadratures with respect to $n$…

Numerical Analysis · Mathematics 2023-05-01 Dinh Dũng

We develop the notion of singular support of a coherent sheaf on a quasi-smooth DG scheme or stack and use it to formulate the Geometric Langlands Conjecture.

Algebraic Geometry · Mathematics 2014-11-04 Dima Arinkin , Dennis Gaitsgory

In the present article, we obtain an estimation of the weighted $L^2$ norm near the singularities of plurisubharmonic weight related to Demailly's strong openness conjecture, which implies the convergence of the weighted $L^2$ norm.

Complex Variables · Mathematics 2016-03-21 Qi'an Guan , Zhenqian Li , Xiangyu Zhou

We study integration and $L_2$-approximation on countable tensor products of function spaces of increasing smoothness. We obtain upper and lower bounds for the minimal errors, which are sharp in many cases including, e.g., Korobov, Walsh,…

Numerical Analysis · Mathematics 2021-09-21 M. Gnewuch , M. Hefter , A. Hinrichs , K. Ritter , G. W. Wasilkowski

We study the following optimal $L^2$ extension problem of openness type: given a complex manifold $M$, a closed subvariety $S\subset M$ and a holomorphic vector bundle $E\rightarrow M$, for any $L^2$ holomorphic section $f$ defined on some…

Complex Variables · Mathematics 2024-05-22 Wang Xu , Xiangyu Zhou

We make an estimation of the support of a multivariable scaling function for an arbitrary dilation matrix. We give a method of calculating the values of the scaling function on a tight set using the knowledge of the size of the support.

Classical Analysis and ODEs · Mathematics 2008-01-03 Irina Maximenko

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

We prove that square integrable holomorphic functions (with respect to a plurisubharmonic weight) can be extended in a square integrable manner from certain singular hypersurfaces (which include uniformly flat, normal crossing divisors) to…

Complex Variables · Mathematics 2014-08-27 Vamsi Pingali

This note reviews the authors' approach to Fujino's conjecture, i.e. the injectivity theorem for lc pairs on compact K\"ahler manifolds, via the use of adjoint ideal sheaves coupled with the associated residue computations in their previous…

Complex Variables · Mathematics 2024-11-12 Tsz On Mario Chan , Young-Jun Choi

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

In this article, we will present that the analytic adjoint ideal sheaves associated to plurisubharmonic functions are not coherent.

Complex Variables · Mathematics 2016-04-26 Qi'an Guan , Zhenqian Li