English
Related papers

Related papers: Theory of non-lc ideal sheaves -basic properties-

200 papers

We consider various definitions of non-lc ideal sheaves -- generalizations of the multiplier ideal sheaf which define the non-lc (non-log canonical) locus. We introduce the maximal non-lc ideal sheaf and intermediate non-lc ideal sheaves…

Algebraic Geometry · Mathematics 2015-03-17 Osamu Fujino , Karl Schwede , Shunsuke Takagi

Sheaves of structures are useful to give constructions in universal algebra and model theory. We can describe their logical behavior in terms of Heyting-valued structures. In this paper, we first provide a systematic treatment of sheaves of…

Logic · Mathematics 2021-12-15 Hisashi Aratake

We present a definition of and discuss basic properties of cross-ratios over noncommutative skew-fields. A new theorem was added.

Rings and Algebras · Mathematics 2015-06-18 Vladimir Retakh

In this paper we explore the link between the theory of sheaves on graphs and noncommutative geometry showing that many concepts and constructions in the latter can be generalized and enhanced using methods coming from the former. They…

Differential Geometry · Mathematics 2026-02-25 Rita Fioresi , Angelica Simonetti , Ferdinando Zanchetta

We use the geometry of the secant variety to an embedded smooth curve to prove some vanishing and regularity theorems for powers of ideal sheaves.

Algebraic Geometry · Mathematics 2007-05-23 Peter Vermeire

We begin the study of character sheaves on a not necessarily connected reductive group, extending the known theory for connected groups.

Representation Theory · Mathematics 2007-05-23 G. Lusztig

In this article, we will characterize the multiplier ideal sheaves with weights of log canonical threshold one by restricting the weights to complex regular surface.

Complex Variables · Mathematics 2016-04-13 Qi'an Guan , Zhenqian Li

We prove that the lattice of ideals of an arbitrary $L$-algebra is distributive. As a consequence, a spectral theory applies with no restriction. We also study the spectrum (i.e. the set of prime ideals) of $L$-algebras and characterize…

Logic · Mathematics 2025-05-28 W. Rump , L. Vendramin

We generalize the Generic Model Theorem for equivariant presheaves of structures; extending the results of Macintyre and Caicedo. We also introduce a new class of generic cohomologies and show how, for some examples, they simplify to non…

Logic · Mathematics 2016-04-28 Gabriel Padilla , Andres Villaveces

We define and describe the properties of a class of perverse sheaves which is very useful when the base ring is not a field.

Algebraic Geometry · Mathematics 2024-07-10 David B. Massey

We introduce a class of noncommutative spectra and give the sheaf structure on the class of noncommutative spectra.

Rings and Algebras · Mathematics 2012-02-15 Keqin Liu

In this article, we first establish an $L^2$-type Dolbeault isomorphism for the sheaf of logarithmic differential forms twisted by the multiplier ideal sheaf. By using this isomorphism and $L^2$-estimates equipped with a singular Hermitian…

Complex Variables · Mathematics 2022-11-21 Yuta Watanabe

In this note, we present a general version of the concavity of the minimal $L^{2}$ integrals related to multiplier ideal sheaves.

Complex Variables · Mathematics 2019-12-19 Qi'an Guan

The work concerns about multiscale McKean-Vlasov stochastic systems. First of all, we prove an average principle for these systems in the $L^2$ sense. Moreover, a convergence rate is presented. Then we define the nonlinear filtering of…

Probability · Mathematics 2023-11-28 Huijie Qiao , Shengqing Zhu

In this article, we present a concavity property of the minimal $L^2$ integrals related to multiplier ideal sheaves with Lebesgue measurable gain. As applications, we give necessary conditions for our concavity degenerating to linearity,…

Complex Variables · Mathematics 2022-11-02 Qi'an Guan , Zheng Yuan

Ideals are one of the main topics of interest to the study of the order structure of an algebra. Due to their nice properties, ideals have an important role both in lattice theory and semigroup theory. Two natural concepts of ideal can be…

Rings and Algebras · Mathematics 2013-02-25 Joao Pita Costa

Let L be a restricted Lie algebra over a field of positive characteristic. We survey the known results about the Lie structure of the restricted enveloping algebra u(L) of L. Related results about the structure of the group of units and the…

Rings and Algebras · Mathematics 2015-11-02 Salvatore Siciliano , Hamid Usefi

This paper defines and examines the basic properties of noncommutative analogues of almost complex structures, integrable almost complex structures, holomorphic curvature, cohomology, and holomorphic sheaves. The starting point is a…

Algebraic Geometry · Mathematics 2013-03-07 Edwin Beggs , S. Paul Smith

The purpose of this paper is twofold. Firstly, to emphasise that the class of Lie algebras with chain lattices of ideals are elementary blocks in the embedding or decomposition of Lie algebras with finite lattice of ideals. Secondly, to…

Rings and Algebras · Mathematics 2023-07-11 Pilar Benito , Jorge Roldán-López

We introduce a notion of limit linear series for nodal curves which are not of compact type. We give a construction of a moduli space of limit linear series, which works also in smoothing families, and we prove a corresponding…

Algebraic Geometry · Mathematics 2014-12-15 Brian Osserman
‹ Prev 1 2 3 10 Next ›