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By using Mather-Jacobian multiplier ideals, we first prove a formula on comparing Grauert-Riemenschneider canonical sheaf with canonical sheaf of a variety over an algebraically closed field of characteristic zero. Then we turn to study…

Algebraic Geometry · Mathematics 2014-04-22 Wenbo Niu , Bernd Ulrich

In this paper the author provides a generalization of classical linkage, i.e. linkage by a complete intersection, in a different context. Namely she looks at residuals in the scheme theoretic intersection of a rational normal surface or…

Algebraic Geometry · Mathematics 2007-05-23 Rita Ferraro

We prove that any arithmetically Gorenstein curve on a smooth, general hypersurface $X\subset \bbP^{4}$ of degree at least 6, is a complete intersection. This gives a characterisation of complete intersection curves on general type…

Algebraic Geometry · Mathematics 2010-05-24 G. V. Ravindra

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 prove that the log canonical thresholds of a large class of binomial ideals, such as complete intersection binomial ideals and the defining ideals of space monomial curves, are computable by linear programming.

Algebraic Geometry · Mathematics 2009-04-09 Takafumi Shibuta , Shunsuke Takagi

In this paper, we investigate the multiplicities and the log canonical thresholds of abelian quotient complete intersection singularities in term of the special datum. Moreover we give bounds of the multiplicity of abelian quotient complete…

Commutative Algebra · Mathematics 2019-08-06 Kohsuke Shibata

In this paper, we introduce numerical cohomology for arithmetic surfaces, which leads to an absolute version of arithmetic Riemann-Roch formula. As an application, we derive an upper bound for the self-intersection number of relative…

Number Theory · Mathematics 2025-12-03 Wei He

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

In this paper the author provides a generalization of classical linkage, i.e. linkage by a complete intersection of dim. 0 or 1 on arithmetically Cohen-Macaulay schemes of any dimension. Namely she looks at residuals in the scheme theoretic…

Algebraic Geometry · Mathematics 2007-05-23 Rita Ferraro

Motivated by recent works on localizations in A-twisted gauged linear sigma models, we discuss a generalization of toric residue mirror symmetry to complete intersections in Grassmannians.

Algebraic Geometry · Mathematics 2023-01-27 Bumsig Kim , Jeongseok Oh , Kazushi Ueda , Yutaka Yoshida

Paper has been accepted for publication in the Journal f\"ur die reine und Angewandte Mathematik. This version contains the corrections and additional references made in the Galley proofs.

Commutative Algebra · Mathematics 2018-01-16 David Eisenbud , Bernd Ulrich

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

We establish GIT semistability of the 2nd Hilbert point of every Gieseker-Petri general canonical curve by a simple geometric argument. As a consequence, we obtain an upper bound on slopes of general families of Gorenstein curves. We also…

Algebraic Geometry · Mathematics 2011-11-24 Maksym Fedorchuk , David Jensen

We develop a theory of residues for arithmetic surfaces, establish the reciprocity law around a point, and use the residue maps to explicitly construct the dualizing sheaf of the surface. These are generalisations of known results for…

Number Theory · Mathematics 2011-01-17 Matthew Morrow

Under suitable technical assumptions, a description is given for the generators of $s$-residual intersections of an ideal $I$ in terms of lower residual intersections, if $s \geq \mu(I)-2$. This implies that $s$-residual intersections can…

Commutative Algebra · Mathematics 2021-11-30 Yevgeniya Tarasova

We show that a refined version of Golyshev's canonical strip hypothesis does hold for the Hilbert polynomials of complete intersections in rational homogeneous spaces.

Algebraic Geometry · Mathematics 2009-04-17 Laurent Manivel

We use Green's canonical syzygy conjecture for generic curves to prove that the Green-Lazarsfeld gonality conjecture holds for generic curves of genus g, and gonality d, if $g/3<d<[g/2]+2$.

Algebraic Geometry · Mathematics 2013-11-19 Marian Aprodu , Claire Voisin

Let X be a smooth variety and Y a closed subscheme of X. By comparing motivic integrals on X and on a log resolution of (X,Y), we prove the following formula for the log canonical threshold of (X,Y): c(X,Y)=dim X-sup_m{(dim Y_m}/(m+1)},…

Algebraic Geometry · Mathematics 2007-05-23 Mircea Mustata

We establish a general computational scheme designed for a systematic computation of characteristic classes of singular complex algebraic varieties that satisfy a Gysin axiom in a transverse setup. This scheme is explicitly geometric and of…

Algebraic Topology · Mathematics 2024-02-21 Markus Banagl , Dominik Wrazidlo

We provide new logarithmic lower bounds for the torsion order of a very general complete intersection in projective space as well as a very general hypersurface in products of projective spaces and Grassmannians, in particular we prove…

Algebraic Geometry · Mathematics 2025-10-29 Jan Lange , Guoyun Zhang