Hilbert-Kunz multiplicity of products of ideals
classification
🧮 math.AC
keywords
idealshilbert-kunzmultiplicityboundscalculationscharacterizeclosuresconnections
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We give bounds for the Hilbert-Kunz multiplicity of the product of two ideals, and we characterize the equality in terms of the tight closures of the ideals. Connections are drawn with $*$-spread and with ordinary length calculations.
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