Abstract:We extend Pólya's indicator diagram theory to encompass entire functions of order at most 1, allowing functions of maximal type. To do so, we introduce an extension of the complex plane in which indicator diagrams may be unbounded or even purely infinite. In this framework, we establish the Laplace and inverse Laplace transforms, and prove an analog of Pólya's theorem. As an application, we extend a characterization of the analytic continuability of power series. The resulting theory is illustrated by a range of classical examples of special functions.
| Comments: | 51 pages, 2 figures |
| Subjects: | Complex Variables (math.CV); Classical Analysis and ODEs (math.CA) |
| MSC classes: | 30D15, 44A10, 30D10, 30B40, 30E05, 52A01 |
| Cite as: | arXiv:2605.25400 [math.CV] |
| (or arXiv:2605.25400v1 [math.CV] for this version) | |
| https://doi.org/10.48550/arXiv.2605.25400 arXiv-issued DOI via DataCite (pending registration) |
From: Kei Beauduin [view email]
[v1]
Mon, 25 May 2026 03:48:23 UTC (75 KB)
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