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Results tagged with flatness
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user 41340
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Faithful-flatness for maps of formal power series rings
Let $R$ be a ring (commutative with unit).Let $f_1,...,f_n\in R$ elements that generate the unit ideal. The map $R\to R_{f_1}\times ...\times R_{f_n}$ is faithfully flat, since this is just a Zariski …
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