A New Expression for Umbral Operators and Power Series Inversion
- 1 May 1977
- journal article
- Published by JSTOR in Proceedings of the American Mathematical Society
- Vol. 64 (1) , 179-185
- https://doi.org/10.2307/2041007
Abstract
It is shown here the compositional inversion of formal power series has a natural formulation in terms of umbral operators. This fact is used to derive a new proof of the Lagrange inversion theorem by operator theoretic methods.Keywords
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