Publications (16)
On the dimension of H-strata in quantum matrices
J. Bell, S. Launois
We study the topology of the prime spectrum of an algebra supporting a rational torus action. More precisely, we study inclusions between prime ideals that are torus-invariant usin…
Milliarcsecond N-Band Observations of the Nova RS Ophiuchi: First Science with the Keck Interferometer Nuller
R. K. Barry, W. C. Danchi, W. A. Traub +38
We report observations of the nova RS Ophiuchi (RS Oph) using the Keck Interferometer Nuller (KIN), approximately 3.8 days following the most recent outburst that occurred on 2006…
A Decision Problem for Ultimately Periodic Sets in Non-standard Numeration Systems
J. Bell, E. Charlier, A. S. Fraenkel +1
Consider a non-standard numeration system like the one built over the Fibonacci sequence where nonnegative integers are represented by words over without two consecutive…
The Parkes Multibeam Pulsar Survey Data Release
J. Bell, R. Manchester, F. Crawford +10
The Parkes multibeam pulsar survey began in 1997 and is now about 50% complete. It has discovered more than 400 new pulsars so far, including a number of young, high magnetic field…
CASTRO: A New Compressible Astrophysical Solver. III. Multigroup Radiation Hydrodynamics
W. Zhang, L. Howell, A. Almgren +3
We present a formulation for multigroup radiation hydrodynamics that is correct to order using the comoving-frame approach and the flux-limited diffusion approximation. We…
The Dixmier-Moeglin equivalence for twisted homogeneous coordinate rings
J. Bell, D. Rogalski, S. J. Sierra
Given a projective scheme over a field , an automorphism of , and a -ample invertible sheaf , one may form the twisted homogeneous coordinate ring $B = B(X, L…