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198 papers · 1 filter
A 7/9 - Approximation Algorithm for the Maximum Traveling Salesman Problem
Katarzyna Paluch, Marcin Mucha, Aleksander Madry
We give a 7/9 - Approximation Algorithm for the Maximum Traveling Salesman Problem.
The Wadge Hierarchy of Deterministic Tree Languages
Filip Murlak
We provide a complete description of the Wadge hierarchy for deterministically recognisable sets of infinite trees. In particular we give an elementary procedure to decide if one d…
Power Asymmetry in Cosmic Microwave Background Fluctuations from Full Sky to Sub-degree Scales: Is the Universe Isotropic?
F. K. Hansen, A. J. Banday, K. M. Gorski +2
We repeat and extend the analysis of Eriksen et al 2004 and Hansen et al 2004 testing the isotropy of the Cosmic Microwave Background (CMB) fluctuations. We find that the hemispher…
Modified effective-range theory for low energy e-N2 scattering
Zbigniew Idziaszek, Grzegorz Karwasz
We analyze the low-energy e-N2 collisions within the framework of the Modified-Effective Range Theory (MERT) for the long-range potentials, developed by O'Malley, Spruch and Rosenb…
Measurement of D+- and D0 production in deep inelastic scattering using a lifetime tag at HERA
ZEUS Collaboration, S. Chekanov
The production of D+- and D0 mesons has been measured with the ZEUS detector at HERA using an integrated luminosity of 133.6 pb-1. The measurements cover the kinematic range 5 < Q^…
Subjet distributions in deep inelastic scattering at HERA
ZEUS Collaboration, S. Chekanov
Subjet distributions were measured in neutral current deep inelastic ep scattering with the ZEUS detector at HERA using an integrated luminosity of 81.7 pb-1. Jets were identified…