The next speaker in the geometry seminar is Jason Lotay (from University College London) who will speak about *The Laplacian flow in G2 geometry*. We will finally return to our supposedly regular time and place, Tuesday 29th September, 14h-15h in the Salle de Profs (9th floor, building NO). Jason’s abstract is below.

A key challenge in Riemannian geometry is to find Ricci-flat metrics on compact manifolds, which has led to fundamental breakthroughs, particularly using geometric analysis methods. All non-trivial examples of such metrics have special holonomy, and the only special holonomy metrics which can occur in odd dimensions must be in dimension 7 and have holonomy G2. I will describe recent progress on a proposed geometric flow method for finding metrics with holonomy G2, called the Laplacian flow. This is joint work with Yong Wei.

Hope to see you all there!