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20022009
most citedA test of the nature of cosmic acceleration using galaxy redshift distortions

670 citations

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8 papers · 1 filter

math.AG20072 cited

Betti numbers for fat point ideals in the plane: a geometric approach

Alessandro Gimigliano, Brian Harbourne, Monica Idà

We consider the open problem of determining the graded Betti numbers for fat point subschemes supported at general points of the projective plane. We relate this problem to the ope…

math.AG2007

The role of the cotangent bundle in resolving ideals of fat points in the plane

Alessandro Gimigliano, Brian Harbourne, Monica Idà

We study the connection between the generation of a fat point scheme supported at general points in the plane and the behaviour of the cotangent bundle with respect to some rationa…

math.AG20064 cited

On the ideals of Secant Varieties to certain rational varieties

M. V. Catalisano, A. V. Geramita, A. Gimigliano

If $\X \subset ¶^n$ is a reduced and irreducible projective variety, it is interesting to find the equations describing the (higher) secant varieties of $\X$. In this paper we find…

math.AG2004

Equivariant K-Theory of Smooth Toric Varieties

Silvano Baggio

We characterize the smooth toric varieties for which the Merkurjev spectral sequence, connecting equivariant and ordinary K-theory, degenerates. We find under which conditions on t…

math.AG2004

Even sets of four nodes on rational surfaces

Alberto Calabri, Ciro Ciliberto, Margarida Mendes Lopes

We describe smooth rational projective algebraic surfaces X, over an algebraically closed field of characteristic different from 2, having an even set of four disjoint (-2)-curves…

math.AG200419 cited

Osculating Varieties of Veronesean and their higher secant varieties

A. Bernardi, M. V. Catalisano, A. Gimigliano +1

We consider the varieties of the k-osculating spaces to the Veronese varieties, the uple embeddings of $\PP n$; we study the dimension of their higher secant variet…