Results 151 to 160 of about 1,170 (186)
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CLOSURE OF REPARAMETRIZATION ALGEBRAS AND FLOW DEPENDENCE OF FINITE REPARAMETRIZATIONS
International Journal of Modern Physics A, 1994The reparametrization algebra in one dimension and some of its generalizations are studied by applying certain developments on formal integration of infinitesimal gauge transformations. The closure of these algebras is related to the finite form of the reparametrizations; more precisely, to its dependence on the flow of the infinitesimal ...
Gràcia, Xavier +2 more
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A Reparametrization Approach for Dynamic Space-Time Models [PDF]
Journal of Statistical Theory and Practice, 2008 Researchers in diverse areas such as environmental and health sciences are increasingly working with data collected across space and time. The space-time processes that are generally used in practice are often complicated in the sense that the auto-dependence structure across space and time is non-trivial, often non-separable and non-stationary in ...
Sujit K Ghosh
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A Note on Reparametrizations of the Euler Equations
Qualitative Theory of Dynamical Systems, 2016zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Molero, F. J., Crespo, F., Ferrer, S.
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Analytic reparametrization of semi-algebraic sets
Journal of Complexity, 2008 The paper concerns the controlled parametrizations of compact semi-algebraic sets. The main result is a generalization, to the analytic case, of the following theorem (Yomdin, Gromov). For any natural \(k\) and any compact semi-algebraic set \(A\subset I^{n}\subset \mathbb{R}^{n}\) (\(I:=[-1,1]\)) there exists a subdivision of \(A\) into semi-algebraic
Yosef Yomdin
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Global reparametrization for curve approximation
Computer Aided Geometric Design, 1998zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Thomas Speer +2 more
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Proper Reparametrization of Rational Ruled Surface [PDF]
2007 10th IEEE International Conference on Computer-Aided Design and Computer Graphics, 2007 In this paper, we present a proper reparametrization algorithm for rational ruled surfaces. That is, for an improper rational parametrization of a ruled surface, we construct a proper rational parametrization for the same surface. The algorithm consists of three steps.
Li-Yong Shen, Xiaoshan Gao
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Reparametrization of paths in manifolds
Il Nuovo Cimento B Series 11, 1991We discuss some aspects of the construction of the principal fiber bundleEiI→EiI/Aut(I), whereEiI is the space of free and injective paths in an arbitrary topological spaceE, and Aut(I) is the group of automorphisms of the interval. The connection with quantum mechanics in the path integral formalism is presented, and it is qualitatively shown the ...
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Local reparametrization by approximating lines of curvature
Mathematics and Computers in Simulation, 2022zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Möbius reparametrizations of rational B-splines
Computer Aided Geometric Design, 1991The authors prove that the reparametrization of a rational \(B\)-spline curve by means of a Möbius transformation again yields a rational \(B\)- spline curve. This shows that a contrary claim due to Farin [\textit{G. Farin}, Mathematical methods in computer aided geometric design, Pap. Int. conf., Oslo/Norw. 1988, 215-238 (1989; Zbl 0677.41012)] cannot
E. T. Y. Lee, Miriam L. Lucian
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