Results 21 to 30 of about 159,936 (305)
Computing the singularities of rational surfaces [PDF]
Mathematics of Computation, 2014 Given a rational projective parametrization P ( s
Pérez Díaz, Sonia +2 more
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Rational Generalized Offsets of Rational Surfaces [PDF]
Mathematical Problems in Engineering, 2012 The rational surfaces and their offsets are commonly used in modeling and manufacturing. The purpose of this paper is to present relationships between rational surfaces and orientation‐preserving similarities of the Euclidean 3‐space. A notion of a similarity surface offset is introduced and applied to different constructions of rational generalized ...
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Conchoid surfaces of rational ruled surfaces [PDF]
Computer Aided Geometric Design, 2011 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Martin Peternell +2 more
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Rational curves on K3 surfaces [PDF]
Inventiones mathematicae, 2011 12 pages, 1 figure, introduction rewritten and a figure ...
Li, Jun, Liedtke, Christian
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On-surface magnetochemistry [PDF]
, 2013 This thesis reports on the on-surface magnetochemistry of square-planar transition-metal complexes adsorbed on ferromagnetic substrates. Specifically, the magnetochemistry of the transition-metal ions (Mn / Fe / Co / Ni) coordinated in square-planar ...
Wäckerlin, Christian
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Structure of stable degeneration of K3 surfaces into pairs of rational elliptic surfaces
Journal of High Energy Physics, 2018 F-theory/heterotic duality is formulated in the stable degeneration limit of a K3 fibration on the F-theory side. In this note, we analyze the structure of the stable degeneration limit. We discuss whether stable degeneration exists for pairs of rational
Yusuke Kimura
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Anticanonical Rational Surfaces [PDF]
Transactions of the American Mathematical Society, 1997 A determination of the fixed components, base points and irregularity is made for arbitrary numerically effective divisors on any smooth projective rational surface having an effective anticanonical divisor. All of the results are proven over an algebraically closed field of arbitrary characteristic.
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On the limits of non-uniform rational B-spline surfaces with varying weights
Advances in Mechanical Engineering, 2017 The non-uniform rational B-spline is a mathematical model commonly used in computer-aided design and manufacturing. For a non-uniform rational B-spline surface, when a single weight approaches infinity, the surface tends to the corresponding control ...
Yue Zhang, Chun-Gang Zhu, Qing-Jie Guo
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An Improvement on the Upper Bounds of the Partial Derivatives of NURBS Surfaces
Mathematics, 2020 The Non-Uniform Rational B-spline (NURBS) surface not only has the characteristics of the rational Bézier surface, but also has changeable knot vectors and weights, which can express the quadric surface accurately.
Ye Tian +4 more
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Mathematics, 2023 We explore stochastic–fractional Drinfel’d–Sokolov–Wilson (SFDSW) equations for some wave solutions such as the cross-kink rational wave solution, periodic cross-rational wave solution and homoclinic breather wave solution.
Shami A. M. Alsallami +2 more
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