Ring hulls and applications
نویسندگان
چکیده
منابع مشابه
Convex Hulls: Complexity and Applications (A Survey)
Computational geometry is, in brief, the study of algorithms for geometric problems. Classical study of geometry and geometric objects, however, is not well-suited to efficient algorithms techniques. Thus, for the given geometric problems, it becomes necessary to identify properties and concepts that lend themselves to efficient computation. The primary focus of this paper will be on one such g...
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Progressive meshes are an established tool for triangle mesh simplification. By suitably adapting the simplification process, progressive hulls can be generated which enclose the original mesh in gradually simpler, nested meshes. We couple progressive hulls with a selective refinement framework and use them in applications involving intersection queries on the mesh. We demonstrate that selectiv...
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The structure and operating principle of ring oscillators (RO) have been described. The expression for the frequency of oscillation of a complementary metal oxide semiconductor (CMOS) delay cell based conventional ring oscillator is presented and propagation delay of the delay stages is calculated. The limitations of a conventional RO have been studied and a few techniques to overcome these lim...
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Let X be a normal scheme and F a coherent sheaf on X . The reflexive hull or double dual of F is the sheaf F ∗∗ := HomX(HomX(F,OX),OX). The natural map F → F ∗∗ kills the torsion subsheaf of F and the support of coker[F → F ] has codimension ≥ 2. This establishes a functor from the category of coherent sheaves on X to the category of reflexive coherent sheaves on X . The same construction works...
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ژورنال
عنوان ژورنال: Journal of Algebra
سال: 2006
ISSN: 0021-8693
DOI: 10.1016/j.jalgebra.2006.06.034