The Low Energy Limit 6 3 . 1 Preliminaries 6 3 . 2 The Left - Moving Algebra 7 3 . 3 The Right - Moving R - Current and Anomaly Matching
نویسنده
چکیده
We study the topological heterotic ring in (0,2) Landau-Ginzburg models without a (2,2) locus. The ring elements correspond to elements of the Koszul cohomology groups associated to a zero-dimensional ideal in a polynomial ring, and the computation of half-twisted genus zero correlators reduces to a map from the first nontrivial Koszul cohomology group to complex numbers. This map is a generalization of the local Grothendieck residue. The results may be applied to computations of Yukawa couplings in a heterotic compactification at a Landau-Ginzburg point.
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