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Exponentially-improved asymptotics of single and multidimensional integrals

by Sinéad Breen

Institution: Dublin City University
Department: School of Mathematical Sciences
Degree:
Year: 1999
Keywords: Mathematics; Integral equations; Asymptotic theory
Posted:
Record ID: 1180881
Full text PDF: http://doras.dcu.ie/18362/


Abstract

Two different approaches for finding the exponentially improved asymptotic behaviour of integrals with saddlepoints are presented. Both rely on the deformation of the contours of integration and can be applied to single and multidimensional integrals alike. The class of integrals studied is of the form J J g(z1, ,zp)e-f{zu 'Zp,X)dz1 dzp

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