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20022005
most citedA direct formulation for sparse PCA using semidefinite programming

125 citations

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15 papers · 1 filter

math.AG20041 cited

An elliptic K3 surface associated to Heron triangles

Ronald van Luijk

A rational triangle is a triangle with rational sides and rational area. A Heron triangle is a triangle with integral sides and integral area. In this article we will show that the…

astro-ph20044 cited

The Initial Mass Function of GMCs

Leo Blitz, Erik Rosolowsky

The properties of GMCs in several Local Group galaxies are quantified and compared. It is found that the mass spectrum of GMCs varies from galaxy to galaxy. The variations are sign…

math.AG20042 cited

A K3 surface associated to certain integral matrices with integral eigenvalues

Ronald van Luijk

In this article we will show that there are infinitely many symmetric, integral 3 x 3 matrices, with zeros on the diagonal, whose eigenvalues are all integral. We will do this by p…

math.CO20049 cited

Longest Induced Cycles on Cayley Graphs

Elena Fuchs, Justin Sinz

In this paper we study the length of the longest induced cycle in the unitary Cayley graph , where is the group of units in . Using…

hep-th20042 cited

Dark Entropy: Holographic Cosmic Acceleration

Eric V. Linder

In cosmic holography, the fundamental quantity is the degrees of freedom on a horizon surface rather than the material contents within the volume. That is, the horizon area and hen…

astro-ph20045 cited

Spectropolarimetry of Core-Collapse Supernovae

Douglas C. Leonard, Alexei V. Filippenko

We briefly review the young field of spectropolarimetry of core-collapse supernovae (SNe). Spectropolarimetry provides the only direct known probe of early-time supernova (SN) geom…