Speaker
Hans Jockers
(Univ Bonn)
Description
I discuss the power of gauge theory techniques in the context of gauged
linear sigma models (GLSMs) with Calabi-Yau manifolds as their target spaces,
so as to analyze the string quantum geometry of Calabi-Yau manifolds, arising from
perturbative and non-perturabtive string worldsheet corrections. The former
corrections are associated to a certain characteristic class of the Calabi-Yau target
space, which arises naturally in the GLSM picture. The latter corrections correspond
to Gromov-Witten invariants of the target space. I briefly comment on higher genus
Gromov-Witten invariants for Calabi-Yau threefolds.
