60,994 research outputs found

    Economic Development in China and Its Implications for East Asia

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    In the aftermath of the economic crisis of 1997-98 South Korea has undertaken a number of major institutional reforms. What are these reforms? Why were they undertaken? What is the outcome of the reforms? In answering these questions the paper examines the influence that the ideas of political leaders on political economy had in setting forth the reform agenda and the role that various interest groups have played in implementing the reform. It argues that there was a shift in the developmental paradigm in the early 1980s, that the new paradigm guided reforms in Korea during the 1980s and 1990s but with initial conditions and interest politics influencing the implementation and actual outcome of reform, and that the post-crisis reform was a culmination of the reform process that began in the early 1980s.Korea, Institutional Reform, Asian Financial Crisis.

    Alternative subtraction scheme using Nagy Soper dipoles

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    We present an alternative subtraction scheme for the treatment of infrared divergences in NLO QCD calculations. In this scheme, the number of transformations is greatly reduced with respect to the standard subtraction scheme by Catani and Seymour. We discuss the general setup of the scheme as well as first applications to NLO processes at hadron and lepton colliders.Comment: 6 pages, 1 figure, presented at RADCOR 0

    On a Dynamical Brauer-Manin Obstruction

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    Let F : X --> X be a morphism of a variety defined over a number field K, let V be a K-subvariety of X, and let O_F(P)= {F^n(P) :n=0,1,2,...} be the orbit of a point P in X(K). We describe a local-global principle for the intersection of V and O_F(P). This principle may be viewed as a dynamical analog of the Brauer-Manin obstruction. We show that the rational points of V(K) are Brauer--Manin unobstructed for power maps on P^2 in two cases: (1) V is a translate of a torus. (2) V is a line and P has a preperiodic coordinate. A key tool in the proofs is the classical Bang-Zsigmondy theorem on primitive divisors in sequences. We also prove analogous local-global results for dynamical systems associated to endomoprhisms of abelian varieties.Comment: 17 page
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