Gluing Associated Prime Ideals of Small Height
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classification
math.AC
keywords
associatedidealsprimelocalnoetherianapplicationscompletionconditions
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Let $B$ be a local (Noetherian) ring and suppose that $B$ has $n$ associated prime ideals where $n \geq 2$. We identify sufficient conditions for there to exist a local (Noetherian) subring $S$ of $B$ such that $S$ and $B$ have the same completion and $S$ has exactly $n - 1$ associated prime ideals. We include applications and consequences of this result.
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