Tight closure's failure to localize - a self-contained exposition
classification
🧮 math.AC
keywords
algebraclosuretheorytightalgebraicassumedbrenner-monskycohomology
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We give a treatment of the Brenner-Monsky example based on polynomial algebra and linear algebra. No prior knowledge of tight closure theory, Hilbert-Kunz theory, algebraic geometry or local cohomology is assumed.
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