Lagrange à la Lah Part I and Lagrange à la Lah Part II are a set of notes on partition polynomials derived from binomial Sheffer sequences via umbral refinement, their relation to compositional inversion via the Laplace transform, and their characterization by umbral operator trees–the
- Bell / Bruno / Touchard partition polynomials
- Lah / Laguerre partition polynomials (order -1)
- Stirling / cycle index polynomials (#s of the first kind / symmetric group)
- Lagrange partition polynomials
