TECHNICAL PAPERS
Mar 1, 1984

Asymptotic Approximations for Multinormal Integrals

Publication: Journal of Engineering Mechanics
Volume 110, Issue 3

Abstract

The problem of deriving approximations for multinormal integrals is examined using results of asymptotic analysis. The boundary of the integration domain given by g(x¯)=0 is simplified by replacing g(x¯) by its Taylor expansion at the points on the boundary with minimal distance to the origin. Two approximations which are obtained by using a linear or quadratic Taylor expansion are compared. It is shown that, applying a quadratic Taylor expansion, an asymptotic approximation for multinormal integrals can be obtained, whereas using linear approximations large relative errors may occur.

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Go to Journal of Engineering Mechanics
Journal of Engineering Mechanics
Volume 110Issue 3March 1984
Pages: 357 - 366

History

Published online: Mar 1, 1984
Published in print: Mar 1984

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Authors

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Karl Breitung
Diplom‐Mathematiker; formerly, Research Asst., Institut für Massivbau, Technische Universität München, Arcisstr. 21, D‐8000 München 2, FR Germany; Address: Schellingstr.21, D‐8000 München 40, FR Germany

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