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{\bf Bernhard Gittenberger and Johannes Mandlburger}
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{\bf Hayman Admissible Functions in Several Variables }
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An alternative generalisation of Hayman's concept of admissible
functions to functions in several variables is developed and a
multivariate asymptotic expansion for the coefficients is proved. In
contrast to existing generalisations of Hayman admissibility, most of
the closure properties which are satisfied by Hayman's admissible
functions can be shown to hold for this class of functions as well.
\bye