activity
19992005
most citedAn extended correction to ``Combinatorial Scalar Curvature and Rigidity of Ball Packings,'' (by D. Cooper and I. Rivin)

17 citations · 44 across the 18 of their papers we have counts for

collaborators
Showing 2004Show all

2 papers · 1 filter

math.CA2004

Estimates and identities for the average distortion of a linear transformation

Igor Rivin

For a linear transformation A from Rn to Rn, we give sharp bounds for the average distortion of A, that is, the average value of log of the euclidean norm of Au over all unit vecto…

math.MG2004★ 1 cited

Surface area and other measures of ellipsoids

Igor Rivin

We begin by studying the surface area of an ellipsoid in n-dimensional Euclidean space as the function of the lengths of the semi-axes. We write down an explicit formula as an inte…