Approximate substitutions and the normal ordering problem
Quantum Physics
2009-11-13 v1 Symbolic Computation
Combinatorics
Abstract
In this paper, we show that the infinite generalised Stirling matrices associated with boson strings with one annihilation operator are projective limits of approximate substitutions, the latter being characterised by a finite set of algebraic equations.
Keywords
Cite
@article{arxiv.0802.1162,
title = {Approximate substitutions and the normal ordering problem},
author = {H. Cheballah and G. H. E. Duchamp and K. A. Penson},
journal= {arXiv preprint arXiv:0802.1162},
year = {2009}
}