1.5k citations
- Oak Ridge National LaboratoryUS11 papers
- Center for Astrophysics Harvard & SmithsonianUS8 papers
- Forschungszentrum JülichDE8 papers
- Triangle Universities Nuclear LaboratoryUS8 papers
- Goddard Space Flight CenterUS7 papers
- Kyungpook National UniversityKR7 papers
- University of California, BerkeleyUS7 papers
- Harvard UniversityUS6 papers
- Stanford UniversityUS6 papers
- Thomas Jefferson National Accelerator FacilityUS6 papers
- University of OsloNO6 papers
- Florida Atlantic UniversityUS5 papers
20 papers · 1 filter
Network exploration via the adaptive LASSO and SCAD penalties
Jianqing Fan, Yang Feng, Yichao Wu
Graphical models are frequently used to explore networks, such as genetic networks, among a set of variables. This is usually carried out via exploring the sparsity of the precisio…
On the adaptive elastic-net with a diverging number of parameters
Hui Zou, Hao Helen Zhang
We consider the problem of model selection and estimation in situations where the number of parameters diverges with the sample size. When the dimension is high, an ideal method sh…
Probing the puncture for black hole simulations
J. David Brown
With the puncture method for black hole simulations, the second infinity of a wormhole geometry is compactified to a single "puncture point" on the computational grid. The region s…
Normal binary graph models
Seth Sullivant
We show that the marginal semigroup of a binary graph model is normal if and only if the graph is free of K_4 minors. The technique, based on the interplay of normality and the geo…
Discovery of extended X-ray emission around the highly magnetic RRAT J1819-1458
N. Rea, M. A. McLaughlin, B. M. Gaensler +7
We report on the discovery of extended X-ray emission around the high magnetic field Rotating Radio Transient J1819-1458. Using a 30ks Chandra ACIS-S observation, we found signific…
Revisiting the Flip-Flop Instability of Hoyle-Lyttleton Accretion
John M. Blondin, T. Chris Pope
We revisit the flip-flop instability of two-dimensional planar accretion using high-fidelity numerical simulations. By starting from an initially steady-state axisymmetric solution…