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- University of Maryland, College ParkUS52 papers
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12 papers · 1 filter
Systematic Bias in 2MASS Galaxy Photometry
James Schombert
We report the discovery of a serious bias in galaxy photometry reported in the 2MASS Extended Source Catalog (Jarrett et al. 2000). Due to an undetermined flaw in the 2MASS surface…
Charge Asymmetric Cosmic Ray Signals From Dark Matter Decay
Spencer Chang, Lisa Goodenough
The PAMELA and Fermi measurements of the cosmic-ray electron and positron spectra have generated much interest over the past two years, because they are consistent with a significa…
GIB: Imperfect Information in a Computationally Challenging Game
M. L. Ginsberg
This paper investigates the problems arising in the construction of a program to play the game of contract bridge. These problems include both the difficulty of solving the game's…
Squeaky Wheel Optimization
D. P. Clements, D. E. Joslin
We describe a general approach to optimization which we term `Squeaky Wheel' Optimization (SWO). In SWO, a greedy algorithm is used to construct a solution which is then analyzed t…
Measurements of branching fractions and CP asymmetries and studies of angular distributions for B to phi phi K decays
The BABAR Collaboration, J. P. Lees
We present branching fraction and CP asymmetry measurements as well as angular studies of B to phi phi K decays using 464 x 10^6 BBbar events collected by the BaBar experiment. The…
The linear trace Harnack quadratic on a steady gradient Ricci soliton satisfies the heat equation
Bennett Chow, Peng Lu
We show that the linear trace Harnack quadratic on a steady gradient Ricci soliton satisfies the heat equation. Similar result holds for shrinkers. We also present an interpolation…