Results 1 to 10 of about 428 (65)

A Dual of the Chow Transformation

open access: yesComplex Manifolds, 2018
We define a dual of the Chow transformation of currents on the complex projective space. This transformation factorizes a left inverse of the Chow transformation and its composition with the Chow transformation is a right inverse of a linear diferential ...
Méo Michel
doaj   +1 more source

Symmetric Powers of Symmetric Bilinear Forms, Homogeneous Orthogonal Polynomials on the Sphere and an Application to Compact Hyperk\"ahler Manifolds

open access: yes, 2016
The Beauville-Fujiki relation for a compact Hyperk\"ahler manifold $X$ of dimension $2k$ allows to equip the symmetric power $\text{Sym}^kH^2(X)$ with a symmetric bilinear form induced by the Beauville-Bogomolov form.
Kapfer, Simon
core   +1 more source

The compactified jacobian can be nonreduced

open access: yes, 2015
We prove by explicit example that the compactified jacobian can be nonreduced. The example is a rational space curve of arithmetic genus 4.
Kass, Jesse Leo
core   +1 more source

The main component of the toric Hilbert scheme

open access: yes, 2008
Let \X be an affine toric variety under a torus \T and let T be a subtorus. The general T-orbit closures in \X and their flat limits are parametrized by the main component H_0 of the toric Hilbert scheme. Further, the quotient torus \T/T acts on H_0 with
Chuvashova, O. V.
core   +1 more source

Arithmetically Cohen--Macaulay curves in P^4 of degree 4 and genus 0

open access: yes, 1996
We show that the arithmetically Cohen--Macaulay (ACM) curves of degree 4 and genus 0 in ${\bold P}^4$ form an irreducible subset of the Hilbert scheme. Using this, we show that the singular locus of the corresponding component of the Hilbert scheme has ...
Martin-Deschamps, Mireille, Piene, Ragni
core   +2 more sources

Flags of sheaves, quivers and symmetric polynomials

open access: yesForum of Mathematics, Sigma
We study a quiver description of the nested Hilbert scheme of points on the affine plane and its higher rank generalization – that is, the moduli space of flags of framed torsion-free sheaves on the projective plane.
Giulio Bonelli   +2 more
doaj   +1 more source

Genetic Diversity and Virulence Determinants of Escherichia coli Strains Isolated from Patients with Crohn's Disease in Spain and Chile. [PDF]

open access: yesFront Microbiol, 2017
Céspedes S   +12 more
europepmc   +1 more source

Elliptic curves on spinor varieties

open access: yesOpen Mathematics, 2012
Perrin Nicolas
doaj   +1 more source

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