University of Siena

output

20022009

most citedEvidence for a Narrow Near-Threshold Structure in the

J / ψ ϕ

Mass Spectrum in

B^{+} \to J / ψ ϕ K^{+}

Decays

322 citations

Showing math.AGShow all

5 papers · 1 filter

math.AG2009★ 1 cited

The resurgence of ideals of points and the containment problem

Cristiano Bocci, Brian Harbourne

Given a symbolic power of a homogeneous ideal in a polynomial ring, we study the problem of determining which powers of the ideal contain it. For ideals defining 0-dimensional subs…

math.AG2008★ 2 cited

A tropical interpretation of m-dissimilarity maps

C. Bocci, F. Cools

Let T be a weighted tree with n numbered leaves and let D be its distance matrix, so D(i,j) is the distance between the leaves i and j. If m is an integer between 2 and n, we prove…

math.AG2008

Complete intersections on general hypersurfaces

E. Carlini, L. Chiantini, A. V. Geramita

We ask when certain complete intersections of codimension $r$ can lie on a generic hypersurface in $\PP^n$. We give a complete answer to this question when $2 r \leq n + 2$ in terms o…

math.AG2007★ 7 cited

Comparing powers and symbolic powers of ideals

Cristiano Bocci, Brian Harbourne

We develop tools to study the problem of containment of symbolic powers $I^{(m)}$ in powers $I^{r}$ for a homogeneous ideal $I$ in a polynomial ring $k [P^{N}]$ in $N + 1$ variables…

math.AG2007

Triple-Point Defective Ruled Surfaces

Luca Chiantini, Thomas Markwig

In arXive:0705.3912 we studied triple-point defective very ample linear systems on regular surfaces, and we showed that they can only exist if the surface is ruled. In the present…