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Related papers: Multiplier ideal sheaves, jumping numbers, and the…

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In this article, we obtain two sharp equality conditions in the restriction formula on complex singularity exponents: an equality between the codimension of the zero variety of related multiplier ideal sheaves and the relative codimension…

Complex Variables · Mathematics 2015-10-27 Qi'an Guan

Let $\varphi$ be a quasi-psh function on a complex manifold $X$ and let $S\subset X$ be a complex submanifold. Then the multiplier ideal sheaves $\mathcal{I}(\varphi|_S)\subset\mathcal{I}(\varphi)|_{S}$ and the complex singularity exponents…

Complex Variables · Mathematics 2021-01-21 Xiankui Meng , Xiangyu Zhou

Let $\mathfrak a \subset \mathscr O_X$ be a coherent ideal sheaf on a normal complex variety $X$, and let $c \ge 0$ be a real number. De Fernex and Hacon associated a multiplier ideal sheaf to the pair $(X, \mathfrak a^c)$ which coincides…

Algebraic Geometry · Mathematics 2020-11-10 Patrick Graf

In this note, for the multiplier ideal sheaves with weights $\log\sum_{i}|z_{i}|^{a_{i}}$, we present the sufficient and necessary condition of the existence of decreasing equisingular approximations with analytic singularities.

Complex Variables · Mathematics 2018-07-10 Qi'an Guan

The goal of this note is to present some recent results of our research concerning multiplier ideal sheaves on complex spaces and singularities of plurisubharmonic functions. We firstly introduce multiplier ideal sheaves on complex spaces…

Complex Variables · Mathematics 2020-03-27 Zhenqian Li

The aim of this paper is to study jumping numbers and multiplier ideals of any ideal in a two-dimensional local ring with a rational singularity. In particular we reveal which information encoded in a multiplier ideal determines the next…

Algebraic Geometry · Mathematics 2016-05-05 Maria Alberich-Carramiñana , Josep Alvarez Montaner , Ferran Dachs-Cadefau

In this manuscript we shall give an explicit formula for the jumping numbers of a simple complete ideal in a two-dimensional regular local ring. In particular, we obtain a formula for the jumping numbers of an analytically irreducible plane…

Commutative Algebra · Mathematics 2007-05-23 Tarmo Jarvilehto

We study in this paper some local invariants attached via multiplier ideals to an effective divisor or ideal sheaf on a smooth complex variety. First considered (at least implicitly) by Libgober and by Loeser and Vaquie, these jumping…

Algebraic Geometry · Mathematics 2007-05-23 Lawrence Ein , Robert Lazarsfeld , Karen E. Smith , Dror Varolin

This paper concerns with mesh restrictions that are needed to satisfy several important mathematical properties -- maximum principles, comparison principles, and the non-negative constraint -- for a general linear second-order elliptic…

Numerical Analysis · Computer Science 2015-02-24 M. K. Mudunuru , K. B. Nakshatrala

In this article, we study the jumping numbers of an ideal in the local ring at rational singularity on a complex algebraic surface. By understanding the contributions of reduced divisors on a fixed resolution, we are able to present an…

Algebraic Geometry · Mathematics 2008-02-17 Kevin Tucker

In this article we give an explicit formula for the jumping numbers of an ideal of finite colenght in a two-dimensional regular local ring with an algebraically closed residue field. For this purpose, we associate a certain numerical…

Commutative Algebra · Mathematics 2018-09-25 Eero Hyry , Tarmo Järvilehto

In this paper the jump formulas for the double layer potential and other singular integrals are proved for arbitrary rectifiable sets, by defining suitable non-tangential limits. The arguments are quite straightforward and only require some…

Classical Analysis and ODEs · Mathematics 2019-11-05 Xavier Tolsa

We give an explicitly computable lower bound for the arithmetic self-intersection number of the dualizing sheaf on a large class of arithmetic surfaces. If some technical conditions are satisfied, then this lower bound is positive. In…

Number Theory · Mathematics 2013-07-22 Ulf Kühn , Jan Steffen Müller

In this article, we solve the strong openness conjecture on the multiplier ideal sheaves for the plurisubharmonic functions posed by Demailly. We prove two conjectures about the growth of the volumes of the sublevel sets of plurisubharmonic…

Complex Variables · Mathematics 2014-01-29 Qi'an Guan , Xiangyu Zhou

This letter derives some new exponential bounds for discrete time, real valued, conditionally symmetric martingales with bounded jumps. The new bounds are extended to conditionally symmetric sub/ supermartingales, and they are compared to…

Probability · Mathematics 2013-05-02 Igal Sason

This paper gives the recursion formula for mixed multiplicities of maximal degrees with respect to joint reductions of ideals, which is one of important results in the mixed multiplicity theory. Using this result, we give consequences on…

Commutative Algebra · Mathematics 2021-03-10 Duong Quoc Viet

In the present article, we obtain an optimal support function of weighted $L^2$ integrations on superlevel sets of psh weights, which implies the strong openness property of multiplier ideal sheaves.

Complex Variables · Mathematics 2022-10-18 Qi'an Guan , Zheng Yuan

We give a sharp upper bound on the multiplicity of a fake weighted projective space with at worst canonical singularities. This is equivalent to giving a sharp upper bound on the index of the sublattice generated by the vertices of a…

Algebraic Geometry · Mathematics 2021-05-21 Gennadiy Averkov , Alexander Kasprzyk , Martin Lehmann , Benjamin Nill

In this paper we find the sharp forms and characterize the complex-valued extremizers of the adjoint Fourier restriction inequalities on the sphere $$\big\|\widehat{f \sigma}\big\|_{L^{p}(\mathbb{R}^{d})} \lesssim…

Classical Analysis and ODEs · Mathematics 2021-09-30 Emanuel Carneiro , Diogo Oliveira e Silva

We define a version of multiplier ideals, the Mather multiplier ideals, on a variety with arbitrary singularities, using the Mather discrepancy and the Jacobian ideal. In this context we prove a relative vanishing theorem, thus obtaining…

Algebraic Geometry · Mathematics 2011-07-13 Lawrence Ein , Shihoko Ishii , Mircea Mustata
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