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Registro 1 de 2, Base de información Bciucla |
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Información de existencia
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Idioma:
Inglés
Palabras Claves:
ASYMPTOTICALLY PIVOTAL,
COVARIANCE,
FULLY DISCRETE,
FULLY SYMMETRY,
SEPARABILITY |
Resumen
We propose a new nonparametric test to test for symmetry and separability of space-time covariance functions. Unlike the existing nonparametric tests, our test has the attractive convenience of being free of choosing any user-chosen number or smoothing parameter. The asymptotic null distributions of the test statistics are free of nuisance parameters and the critical values have been tabulated in the literature. From a practical point of view, our test is easy to implement and can be readily used by the practitioner. A Monte-Carlo experiment and real data analysis illustrate the finite sample performance of the new test. |
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Registro 2 de 2, Base de información Bciucla |
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Información de existencia
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Palabras Claves:
FINITE ELEMENT METHOD,
FULLY DISCRETE,
SUPG,
VISCOELASTICITY |
Resumen
In this article we consider the numerical approximation to the time-dependent viscoelasticity equations with an Oldroyd B constitutive equation. The approximation is stabilized by using a streamline upwind Petrov--Galerkin (SUPG) approximation for the constitutive equation. We analyze both the semidiscrete and fully discrete numerical approximations. For both discretizations we prove the existence of, and derive a priori error estimates for, the numerical approximations. |