Some Tauberian theory for the q-Lagrange inversion
Barbe, Ph. · McCormick, W. P.
Original · EN
We consider formal power series defined through the functional q-equation of the q-Lagrange inversion. Under some assumptions, we obtain the asymptotic behavior of the coefficients of these power series. As a by-product, we show that, via the 1/q-Borel transform, the q-Lagrange inversion formula provides an interpolation between the usual Lagrange inversion (q=1) and the probabilistic theory of renewal sequences (q tends to 0). We also discuss some new solutions of the q-Lagrange inversion equation which do not vanish at 0.
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