Schoutens's conjecture on very small maximal Cohen–Macaulay modules
Schoutens's conjecture on very small maximal Cohen–Macaulay modules
Let be a complete local ring in equal characteristic. A finitely generated maximal Cohen–Macaulay -module is very small if
where is the multiplicity of with respect to .
Schoutens's conjecture. Every complete local ring admits a very small maximal Cohen–Macaulay module.
Very small maximal Cohen–Macaulay modules strengthen the existence of small maximal Cohen–Macaulay modules. The source describes existence results in dimension at most two and for affine toric rings, but provides no resolution of the conjecture.
Sources & referencesView supporting material
Primary source
Linquan Ma, “Maximal Cohen-Macaulay modules over certain Segre products”, arXiv:1802.04786 (2018).
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