356 research outputs found

    About a non-standard interpolation problem

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    Using algebraic methods, and motivated by the one variable case, we study a multipoint interpolation problem in the setting of several complex variables. The duality realized by the residue generator associated with an underlying Gorenstein algebra, using the Lagrange interpolation polynomial, plays a key role in the arguments

    Challenge IEEE-ISBI/TCB : Application of Covariance matrices and wavelet marginals

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    This short memo aims at explaining our approach for the challenge IEEE-ISBI on Bone Texture Characterization. In this work, we focus on the use of covariance matrices and wavelet marginals in an SVM classifier.Comment: 9 pages, 4 Figues, 2 Tables, Challenge IEEE-ISBI : Bone Texture Characterizatio

    One parameter regularizations of products of residue currents

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    We show that Coleff-Herrera type products of residue currents can be defined by analytic continuation of natural functions depending on one complex variable.Comment: 8 page

    Segre numbers, a generalized King formula, and local intersections

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    Let J\mathcal J be an ideal sheaf on a reduced analytic space XX with zero set ZZ. We show that the Lelong numbers of the restrictions to ZZ of certain generalized Monge-Amp\`ere products (ddclogf2)k(dd^c\log|f|^2)^k, where ff is a tuple of generators of J\mathcal J, coincide with the so-called Segre numbers of J\mathcal J, introduced independently by Tworzewski and Gaffney-Gassler. More generally we show that these currents satisfy a generalization of the classical King formula that takes into account fixed and moving components of Vogel cycles associated with J\mathcal J. A basic tool is a new calculus for products of positive currents of Bochner-Martinelli type. We also discuss connections to intersection theory
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