Changgui Zhang

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20092023

most citedExponential type Nagumo norms and summability of formal solutions of singular partial differential equations

1 citations · 2 across the 9 of their papers we have counts for

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math.NT2021

On the positive powers of $q$ -analogs of Euler series

Changgui Zhang

The most simple and famous divergent power series coming from ODE may be the so-called Euler series $\sum_{n \geq 0} (- 1)^{n} n! x^{n + 1}$ , that, as well as all its positive powers, is…

On the positive powers of q-analogs of Euler series

On the positive powers of $q$ -analogs of Euler series