Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
11024744 | Journal of Algebra | 2018 | 19 Pages |
Abstract
We classify coherent modules on k[x,y] of length at most 4 and supported at the origin. We compare our calculation with the motivic class of the moduli stack parametrizing such modules, extracted from the Feit-Fine formula. We observe that the natural torus action on this stack has finitely many fixed points, corresponding to connected skew Ferrers diagrams.
Keywords
Related Topics
Physical Sciences and Engineering
Mathematics
Algebra and Number Theory
Authors
Riccardo Moschetti, Andrea T. Ricolfi,