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Maximal Cohen–Macaulay modules over the cone of an elliptic curve

✍ Scribed by Radu Laza; Gerhard Pfister; Dorin Popescu


Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
200 KB
Volume
253
Category
Article
ISSN
0021-8693

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✦ Synopsis


where k is an algebraically closed field with char k = 3. Using Atiyah bundle classification over elliptic curves we describe the matrix factorizations of the graded, indecomposable reflexive R-modules, equivalently we describe explicitly the indecomposable bundles over the projective curve V (f ) ⊂ P 2 k . Using the fact that over the completion R of R every reflexive module is gradable, we obtain a description of the maximal Cohen-Macaulay modules over R = k❏Y 1 , Y 2 , Y 3 ❑/(f ).