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An Inversion Formula for Multivariate Power Series

Algebraic Geometry 2012-03-20 v1

Abstract

For formal multivariate power series φ(x)\varphi(x) an inversion formula of the form φ1(x)=x+m=1k=0m(1)k(mk)φk(x)isoffered \varphi^{-1}(x)=x +\sum_{m=1}^{\infty}\sum_{k=0}^m (-1)^k(m k)\varphi^{\circ k}(x) is offered.

Cite

@article{arxiv.1203.3834,
  title  = {An Inversion Formula for Multivariate Power Series},
  author = {Ural Bekbaev},
  journal= {arXiv preprint arXiv:1203.3834},
  year   = {2012}
}
R2 v1 2026-06-21T20:35:29.709Z