Counts of maps to Grassmannians and intersections on the moduli space of bundles
Marian, Alina ; Oprea, Dragos
J. Differential Geom., Tome 75 (2007) no. 1, p. 155-175 / Harvested from Project Euclid
We show that intersection numbers on the moduli space of stable bundles of coprime rank and degree over a smooth complex curve can be recovered as highest-degree asymptotics in formulas of Vafa-Intriligator type. In particular, we explicitly evaluate all intersection numbers appearing in the Verlinde formula. Our results are in agreement with previous computations of Witten, Jeffrey-Kirwan and Liu. Moreover, we prove the vanishing of certain intersections on a suitable Quot scheme, which can be interpreted as giving equations between counts of maps to the Grassmannian.
Publié le : 2007-05-14
Classification: 
@article{1180135668,
     author = {Marian, Alina and Oprea, Dragos},
     title = {Counts of maps to Grassmannians and intersections on the moduli space of bundles},
     journal = {J. Differential Geom.},
     volume = {75},
     number = {1},
     year = {2007},
     pages = { 155-175},
     language = {en},
     url = {http://dml.mathdoc.fr/item/1180135668}
}
Marian, Alina; Oprea, Dragos. Counts of maps to Grassmannians and intersections on the moduli space of bundles. J. Differential Geom., Tome 75 (2007) no. 1, pp.  155-175. http://gdmltest.u-ga.fr/item/1180135668/