#### Volume 22, issue 3 (2018)

 Recent Issues
 The Journal About the Journal Subscriptions Editorial Board Editorial Interests Editorial Procedure Submission Guidelines Submission Page Ethics Statement Author Index To Appear ISSN (electronic): 1364-0380 ISSN (print): 1465-3060 Other MSP Journals
Brane actions, categorifications of Gromov–Witten theory and quantum K–theory

### Etienne Mann and Marco Robalo

Geometry & Topology 22 (2018) 1759–1836
##### Abstract

Let $X$ be a smooth projective variety. Using the idea of brane actions discovered by Toën, we construct a lax associative action of the operad of stable curves of genus zero on the variety $X$ seen as an object in correspondences in derived stacks. This action encodes the Gromov–Witten theory of $X$ in purely geometrical terms and induces an action on the derived category $Qcoh\left(X\right)$ which allows us to recover the quantum K–theory of Givental and Lee.

##### Keywords
Gromov–Witten theory, higher category, derived algebraic geometry
Primary: 14N35