53 citations
- Australian Astronomical ObservatoryAU1 paper
- Ben-Gurion University of the NegevIL1 paper
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- Science OxfordGB1 paper
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6 papers · 1 filter
Slopes of overconvergent 2-adic modular forms
Kevin Buzzard, Frank Calegari
The slope of a p-adic overconvergent eigenform of weight k is the p-adic valuation of its U_p eigenvalue. We find the slope of all 2-adic finite slope overconvergent eigenforms of…
"Junk" DNA as a genetic decoy
Joao Magueijo
We propose that the evolutionary purpose of junk DNA is to protect the gene. Mutation agents, such as retro-viruses, hit ``decoy'' DNA most of the time. Although the argument is fa…
Mapping the Remote Milky Way Halo using BHB stars at 70 < r < 130 kpc
L. Clewley, S. J. Warren, P. C. Hewett +2
We increase the number of remote halo tracers by using blue horizontal branch (BHB) stars out to Galactocentric distances of 130 kpc. We use SDSS EDR photometry and the VLT to dete…
The Iron Abundance and Density Structure of the Inner Ring around SN 1987A
S. Mattila, P. Lundqvist, P. Meikle +2
We present a spectroscopic study of the inner circumstellar ring around SN 1987A. The aim is to determine the elemental abundances and density structure, with particular emphasis o…
The X-ray problem revisited
Estelle L. Basor, Yang Chen
In this letter we re-visit the X-ray problem. Assuming point interaction between the conduction electrons and the first instantaneously created core-hole, the latter's Green's func…
Jacobi Polynomials from Compatibility Conditions
Yang Chen, Mourad Ismail
We revisit the ladder operators for orthogonal polynomials and re-interpret two supplementary conditions as compatibility conditions of two linear over-determined systems; one invo…