Arithmetical Results on Certain Multivariate Power Series |
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Authors: | Bundschuh P; Zhou P |
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Institution: | Mathematisches Institut, Universität zu Köln Weyertal 86-90, 50931 Köln, Germany pb{at}math.uni-koeln.de
Department of Mathematics, Statistics, and Computer Science St. Francis Xavier University, Antigonish, Nova Scotia, Canada B2G 2W5 pzhou{at}stfx.ca |
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Abstract: | Power series with non-zero convergence radius R(f) are considered, and the arithmeticalnature (that is, irrationality, or even transcendence) of thecorresponding multivariate series is studied if x1, ..., xm and the sequence (f(n)) satisfy appropriatearithmetical conditions. It follows that such arithmetical resultscan be written down easily if linear independence results onthe function F(x), defined in |x| < R(f) by the originalone-dimensional power series, and possibly its derivatives atthe points xµ are known. Some typical applications areexplicitly stated. 2000 Mathematics Subject Classification 11J72. |
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