139 citations · 637 across the 32 of their papers we have counts for
5 papers · 1 filter
Exponential BPS graphs and D brane counting on toric Calabi-Yau threefolds: Part I
Sibasish Banerjee, Pietro Longhi, Mauricio Romo
We study BPS spectra of D-branes on local Calabi-Yau threefolds with , corresponding to …
Multi-cover skeins, quivers, and 3d dualities
Tobias Ekholm, Piotr Kucharski, Pietro Longhi
The relation between open topological strings and representation theory of symmetric quivers is explored beyond the original setting of the knot-quiver correspondence. Multiple cov…
Localization of 4d theories on
Pietro Longhi, Fabrizio Nieri, Antonio Pittelli
We consider 4d gauge theories with R-symmetry on a hemisphere times a torus. We apply localization techniques to evaluate the exact partition function through a coh…
Gluing two affine Yangians of
Wei Li, Pietro Longhi
We construct a four-parameter family of affine Yangian algebras by gluing two copies of the affine Yangian of . Our construction allows for gluing operators with a…
An infrared bootstrap of the Schur index with surface defects
Martin Fluder, Pietro Longhi
The infrared formula relates the Schur index of a 4d theory to its wall-crossing invariant, a.k.a. BPS monodromy. A further extension of this formula, proposed by C…