aaaA memorial conference for Leon Ehrenpreis was held at Temple University, November 15-16, 2010. In the spirit of Ehrenpreisas contribution to mathematics, the papers in this volume, written by prominent mathematicians, represent the wide breadth of subjects that Ehrenpreis traversed in his career, including partial differential equations, combinatorics, number theory, complex analysis and a bit of applied mathematics. With the exception of one survey article, the papers in this volume are all new results in the various fields in which Ehrenpreis worked . There are papers in pure analysis, papers in number theory, papers in what may be called applied mathematics such as population biology and parallel refractors and papers in partial differential equations. The mature mathematician will find new mathematics and the advanced graduate student will find many new ideas to explore.aA biographical sketch of Leon Ehrenpreis by his daughter, a professional journalist, enhances the memorial tribute and gives the reader a glimpse into the life and career of a great mathematician.53 (Semialgebraic Case) It is straightforward to consider semialgebraic descent problems D D p W Y ! ... F. We claim that for every semialgebraic descent problem D, there is a proper surjection r W Ys ! Y such that the corresponding scion rD is ... To see this, first, we can replace the semialgebraic X by a real algebraic variety Xa that contains it and extend E to semialgebraic vector bundle over Xa. Not allanbsp;...

Title | : | From Fourier Analysis and Number Theory to Radon Transforms and Geometry |

Author | : | Hershel M. Farkas, Robert C. Gunning, Marvin I. Knopp, B. A. Taylor |

Publisher | : | Springer Science & Business Media - 2012-09-18 |

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