Betti tables for indecomposable matrix factorizations of $XY(X-Y)(X-\lambda Y)$

Abstract

We classify the Betti tables of indecomposable graded matrix factorizations over the simple elliptic singularity $f_{\lambda }=XY(X-Y)(X-\lambda Y)$ by making use of an associated weighted projective line of genus one.

23 pages, 2 figures. Comments welcome