Is there a characterization of the regular languages involving formal power series? I saw $\frac{1}{1-x} = 1+x+x^2+x^3+\cdots$ and $A^* = \epsilon + A + AA + AAA + \cdots$ in two different contexts on the same day and it made me curious if there was yet another characterization of the regular languages I didn't know about.
2026-03-28 10:40:43.1774694443
The connection between regular languages and formal power series
51 Views Asked by Bumbble Comm https://math.techqa.club/user/bumbble-comm/detail AtRelated Questions in POWER-SERIES
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