Shubham Dwivedi (Hamburg and Berlin) will speak in the geometry seminar on 30th January. **Note this is a Tuesday, so not our normal day!** Shubham’s title is *“Geometric flows of G2-structures”* and his abstract is below.

*We will discuss a family of flows of G2-structures on seven dimensional Riemannian manifolds. These flows are negative gradient flows of natural energy functionals involving various torsion components of G2-structures. We will prove short-time existence and uniqueness of solutions to the flows and a priori estimates for some specific flows in the family. Time permitting, we will discuss some future problems. This talk is based on joint work with Panagiotis Gianniotis and Spiro Karigiannis (*arXiv:2311.05516*)*