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For a Cohen-Macaulay ideal of holomorphic functions, we construct by elementary means residue currents whose annihilator is precisely the given ideal. We give two proofs that the currents have the prescribed annihilator, one using the…

Complex Variables · Mathematics 2018-06-11 Richard Lärkäng , Emmanuel Mazzilli

Given a coherent ideal sheaf $J$ we construct locally a vector-valued residue current $R$ whose annihilator is precisely the given sheaf. In case $J$ is a complete intersection, $R$ is just the classical Coleff-Herrera product. By means of…

Complex Variables · Mathematics 2007-11-15 Mats Andersson , Elizabeth Wulcan

With a given holomorphic section of a Hermitian vector bundle, one can associate a residue current by means of Cauchy-Fantappi\`e-Leray type formulas. In this paper we define products of such residue currents. We prove that, in the case of…

Complex Variables · Mathematics 2007-05-23 Elizabeth Wulcan

We give a local criterion in terms of a residue current for strong holomorphicity of a meromorphic function on an arbitrary pure-dimensional analytic variety. This generalizes a result by A Tsikh for the case of a reduced complete…

Complex Variables · Mathematics 2009-03-31 Mats Andersson

We construct an explicit homotopy formula for the d-bar complex on a complete intersection subvariety V in CP^n. This formula can be interpreted as a Hodge-type decomposition for residual currents on V.

Algebraic Geometry · Mathematics 2015-06-09 Gennadi M. Henkin , Peter L. Polyakov

Given a free resolution of an ideal $\mathfrak{a}$ of holomorphic functions, one can construct a vector-valued residue current, $R$, which coincides with the classical Coleff-Herrera product if $\mathfrak{a}$ is a complete intersection…

Complex Variables · Mathematics 2015-10-08 Richard Lärkäng , Elizabeth Wulcan

Inspired by the work of Ulrich and Huneke-Ulrich, we describe a pattern to show that the ideals of certain opposite embedded Schubert varieties defined by this pattern arise by taking residual intersections of two geometrically linked…

Algebraic Geometry · Mathematics 2024-11-21 Sara Angela Filippini , Xianglong Ni , Jacinta Torres , Jerzy Weyman

This paper studies algebraic residual intersections in rings with Serre's condition \( S_{s} \). It demonstrates that residual intersections admit free approaches i.e. perfect subideal with the same radical. This fact leads to determining a…

Commutative Algebra · Mathematics 2025-02-13 S. Hamid Hassanzadeh

We introduce the notion of residual intersections of modules and prove their existence. We show that projective dimension one modules have Cohen-Macaulay residual intersections, namely they satisfy the relevant Artin-Nagata property. We…

Commutative Algebra · Mathematics 2022-05-30 Alessandra Costantini , Louiza Fouli , Jooyoun Hong

Let $f_1$, $f_2$, and $f_3$ be holomorphic functions on a complex manifold and assume that the common zero set of the $f_j$ has maximal codimension, i.e., that it is a complete intersection. We prove that the iterated Mellin transform of…

Complex Variables · Mathematics 2007-05-23 Håkan Samuelsson

We introduce the notion of Lebesgue currents. They are a special type of currents involving Lebesgue measure. We apply it to define the intersection of singular cycles, which provides the foundation to the real intersection theory.

Algebraic Geometry · Mathematics 2020-10-21 B. Wang

Cohen-Macaulayness, unmixedness, the structure of the canonical module and the stability of the Hilbert function of algebraic residual intersections are studied in this paper. Some conjectures about these properties are established for…

Commutative Algebra · Mathematics 2016-07-13 S. H. Hassanzadeh , J. Naéliton

We compute residue currents of Bochner-Martinelli type associated with a monomial ideal $I$, by methods involving certain toric varieties. In case the variety of $I$ is the origin, we give a complete description of the annihilator of the…

Complex Variables · Mathematics 2007-05-23 Elizabeth Wulcan

In this article we study the structure of residual intersections via constructing a finite complex which is acyclic under some sliding depth conditions on the cycles of the Koszul complex. This complex provides information on an ideal which…

Commutative Algebra · Mathematics 2011-05-18 Seyed Hamid Hassanzadeh

A commutative local ring is generally defined to be a complete intersection if its completion is isomorphic to the quotient of a regular local ring by an ideal generated by a regular sequence. It has not previously been determined whether…

Commutative Algebra · Mathematics 2011-09-23 Raymond C. Heitmann , David A. Jorgensen

We find explicit formulas for the Hilbert series of residual intersections of a scheme in terms of the Hilbert series of its conormal modules. In a previous paper we proved that such formulas should exist. We give applications to the…

Commutative Algebra · Mathematics 2015-09-30 Marc Chardin , David Eisenbud , Bernd Ulrich

We give a method for constructing principal ideals in spaces of real functions whose intersection is not a finitely generated ideal. This problem is also discussed for spaces of holomorphic functions.

Functional Analysis · Mathematics 2019-03-28 Bulat Khabibullin , Enzhe Khabibullina

If $I$ is a perfect ideal in a local Cohen-Macaulay ring, the generators of ideals linked to $I$ are well understood. However, the generators of the residual intersections of $I$ have only been computed in a few special cases. In this…

Commutative Algebra · Mathematics 2022-10-28 Yevgeniya Tarasova

We construct Coleff-Herrera products and Bochner-Martinelli type residue currents associated with a tuple $f$ of weakly holomorphic functions, and show that these currents satisfy basic properties from the (strongly) holomorphic case, as…

Complex Variables · Mathematics 2013-12-13 Richard Lärkäng

Let $X$ be a projective manifold. Let $Y_1,...,Y_{p+1}$ be $p+1$ ample hypersurfaces in complete intersection position on $X$, each defined by the global section of an ample Cartier divisor. We show in this note that for $i\le p+1$, the…

Algebraic Geometry · Mathematics 2007-05-23 Bruno Fabre
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