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Let $A$ be a complete discrete valuation ring. (For example $A$ is the completion of the local ring of a curve at a point).

What is the fraction field of $A[[t]]$? Is it $\operatorname{Frac}(A)((t))$?

notsure
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    Maybe relevant: https://math.stackexchange.com/questions/140054/what-is-the-fraction-field-of-rx-the-power-series-over-some-integral-doma. – Martín-Blas Pérez Pinilla Apr 06 '19 at 17:41
  • Ohhh didn't see it. Thank you very much. – notsure Apr 06 '19 at 17:42
  • Does this answer your question? [What is the fraction field of $R[[x]]$, the power series over some integral domain?](https://math.stackexchange.com/questions/140054/what-is-the-fraction-field-of-rx-the-power-series-over-some-integral-doma) – Dietrich Burde Apr 22 '22 at 10:14

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