29 citations · 56 across the 3 of their papers we have counts for
5 papers · 1 filter
(0,2) Landau-Ginzburg Models and Residues
Ilarion V. Melnikov
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 t…
Half-Twisted (0,2) Landau-Ginzburg Models
Ilarion V. Melnikov, Savdeep Sethi
We compute correlators of chiral operators in (0,2) supersymmetric Landau-Ginzburg theories. The class of theories and the correlators we study are relevant for extending and testi…
Instantons, Hypermultiplets and the Heterotic String
Nick Halmagyi, Ilarion V. Melnikov, Savdeep Sethi
Hypermultiplet couplings in type IIA string theory on a Calabi-Yau space can be quantum corrected by D2-brane instantons wrapping special Lagrangian cycles. On the other hand, hype…
A-Model Correlators from the Coulomb Branch
Ilarion V. Melnikov, M. Ronen Plesser
We compute the contribution of discrete Coulomb vacua to A-Model correlators in toric Gauged Linear Sigma Models. For models corresponding to a compact variety, this determines the…
D-Branes on Vanishing del Pezzo Surfaces
Paul S. Aspinwall, Ilarion V. Melnikov
We analyze in detail the case of a marginally stable D-Brane on a collapsed del Pezzo surface in a Calabi-Yau threefold using the derived category of quiver representations and the…