Categorification of the plurigenera of Gorenstein normal surface singularities
András Némethi,
Gergő Schefler
Abstract:Consider a complex normal surface singularity and its three plurigenera, the m-th $$L^2$$
L
2
–plurigenus of Watanabe, the m-th plurigenus of Knöller and the m-th log-plurigenus of Morales. For any of these invariants we construct a double graded $$\mathbb {Z}[U]$$
Z
[
U
]
–module, whos… Show more
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