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相关论文: Spectral Hirzebruch-Milnor classes of singular hyp…

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We show that the Hirzebruch-Milnor class of a projective hypersurface, which gives the difference between the Hirzebruch class and the virtual one, can be calculated by using the Steenbrink spectra of local defining functions of the…

代数几何 · 数学 2016-06-08 Laurentiu Maxim , Morihiko Saito , Joerg Schuermann

We extend the Hirzebruch-Milnor class of a hypersurface $X$ to the case where the normal bundle is nontrivial and $X$ cannot be defined by a global function, using the associated line bundle and the graded quotients of the monodromy…

代数几何 · 数学 2023-10-31 Laurenţiu Maxim , Morihiko Saito , Ruijie Yang

The Hirzebruch-Milnor class is given by the difference between the homology Hirzebruch characteristic class and the virtual one. It is known that the Hirzebruch-Milnor class for a certain singular hypersurface can be calculated by using the…

代数几何 · 数学 2018-07-03 Xia Liao , Youngho Yoon

We prove a new formula for the Hirzebruch-Milnor classes of global complete intersections with arbitrary singularities describing the difference between the Hirzebruch classes and the virtual ones. This generalizes a formula for the…

代数几何 · 数学 2013-03-07 Laurentiu Maxim , Morihiko Saito , Joerg Schuermann

We show that it is possible to utilize the Hirzebruch-Milnor classes of projective hypersurfaces in the classical sense to detect higher du Bois or rational singularities only in some special cases. We also give several remarks clarifying…

代数几何 · 数学 2023-09-07 Morihiko Saito

In this paper we use the deformation to the normal cone and the corresponding Verdier-Saito specialization to define and study (spectral) Hirzebruch-Milnor type homology characteristic classes for local complete intersections. Our main…

代数几何 · 数学 2025-02-11 Bradley Dirks , Laurenţiu Maxim , Sebastián Olano

In this note, we give several equivalent characterizations of higher Du Bois and higher rational singularities in the context of globally defined hypersurfaces. As a key input, we characterize these singularities using the Hodge filtration…

代数几何 · 数学 2024-12-13 Laurenţiu Maxim , Ruijie Yang

The Milnor-Hirzebruch class of a locally complete intersection X in an algebraic manifold M measures the difference between the (Poincare dual of the) Hirzebruch class of the virtual tangent bundle of X and, respectively, the…

代数拓扑 · 数学 2012-04-03 Sylvain E. Cappell , Laurentiu Maxim , Joerg Schuermann , Julius L. Shaneson

In this work we study algebraic, geometric and topological properties of the Milnor classes of local complete intersections with arbitrary singularities. We describe first the Milnor class of the intersection of a finite number of…

代数几何 · 数学 2012-08-28 R. Callejas-Bedregal , M. F. Z. Morgado , J. Seade

We derive a formula for the Milnor class of scheme-theoretic global complete intersections (with arbitrary singularities) in a smooth variety in terms of the Segre class of its singular scheme. In codimension one the formula recovers a…

代数几何 · 数学 2013-11-19 James Fullwood

We employ the perverse vanishing cycles to show that each reduced cohomology group of the Milnor fiber, except the top two, can be computed from the restriction of the vanishing cycle complex to only singular strata with a certain lower…

代数几何 · 数学 2022-07-08 Laurenţiu Maxim , Laurenţiu Păunescu , Mihai Tibăr

In this paper we give an introduction to our recent work on characteristic classes of complex hypersurfaces based on some talks given at conferences in Strasbourg, Oberwolfach and Kagoshima. We explain the relation between nearby cycles for…

代数几何 · 数学 2010-05-05 Joerg Schuermann

There is an explicit formula expressing the Chern-Schwartz-MacPherson class of a hypersurface in a nonsingular variety (in characteristic $0$) in terms of the Segre class of its jacobian subscheme; this has been known for a number of years.…

代数几何 · 数学 2019-10-30 Paolo Aluffi

We introduce a class extending the notion of Chern-Mather class to possibly nonreduced schemes, and use it to express the difference between Schwartz-MacPherson's Chern class and the class of the virtual tangent bundle of a singular…

代数几何 · 数学 2012-04-10 Paolo Aluffi

Homology Hirzebruch characteristic classes for singular varieties have been recently defined by Brasselet-Schuermann-Yokura as an attempt to unify previously known characteristic class theories for singular spaces (e.g., MacPherson-Chern…

代数几何 · 数学 2016-05-24 Sylvain E. Cappell , Laurentiu Maxim , Joerg Schuermann , Julius L. Shaneson

Suppose that $f$ defines a singular, complex affine hypersurface. If the critical locus of $f$ is one-dimensional at the origin, we obtain new general bounds on the ranks of the homology groups of the Milnor fiber, $F_{f, \mathbf 0}$, of…

代数几何 · 数学 2007-05-23 Lê Dũng Tráng , David B. Massey

An isolated hypersurface singularity comes equipped with many different pairings on different spaces, the intersection form and the Seifert form on the Milnor lattice, a polarizing form for a mixed Hodge structure on a dual space, and a…

代数几何 · 数学 2017-12-04 Sven Balnojan , Claus Hertling

This paper continues our researches \cite{DS1, DS2, DS3} by computing some invariants based on Hilbert-Poincar\'{e} series associated to Milnor algebras. Our computations are for some of the classical surfaces and 3-folds with different…

代数几何 · 数学 2013-10-01 Gabriel Sticlaru

Using his deep and beautiful idea of cutting with a Hyperplane, Lefschetz explained how the homology groups of a projective smooth variety could be constructed from basic pieces, that he called primitive homology. This idea can be applied…

代数几何 · 数学 2022-02-14 Miguel Angel Dela-Rosa , Xavier Gómez-Mont

For any number $m \equiv 0,1 \, (4)$ we correct the generating function of Hurwitz class number sums $\sum_r H(4n - mr^2)$ to a modular form (or quasimodular form if $m$ is a square) of weight two for the Weil representation attached to a…

数论 · 数学 2018-09-28 Brandon Williams
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