Objectif
The interplay between Geometry and Analysis has been among the most fruitful mathematical ideas in recent years, the most obvious example being Perelman's proof of Poincare' conjecture. I plan to pursue further this approach and make distinct progress in two different problems.
Scalar Curvature: A classical theorem in Riemannian Geometry states that nonnegative scalar curvature metrics which are flat outside a compact set must be Euclidean. The equivalent problem for positive scalar curvature is known as the Min-Oo conjecture and was recently disproven by Brendle, Marques, and myself.
I plan to show uniform area bounds for minimal surfaces in manifolds with positive scalar curvature where the bounds are attained if and only if we are on a round sphere. I also plan to show that those manifolds have an infinite number of minimal surfaces (Yau's conjecture). My approach consists of studying min-max methods in order to obtain existence of higher-index minimal surfaces.
Mean curvature flow: An hard open problem consists in determining which Lagrangians in a Calabi-Yau admit a minimal Lagrangian (SLag) in their isotopy class. A complete answer would be a breakthrough of considerable size. A possible approach consists of deforming a given Lagrangian in the direction which decreases area the most and hope to show convergence to a SLag. The difficulty with this method is that finite-time singularities can occur.
I plan to study the regularity theory for this flow and show that, for surfaces, singularities are isolated in space. My approach consists in classifying the possible blow-ups and find monotone quantities which will rule out non SLag blow-ups.
In October of last year I completed 9 years in the USA where the last 2 were spent as an Assistant Professor at Princeton University. Due to personal reasons I decided to move back to Europe. Hence this grant will provide me with the necessary financial support to continue my research.
Champ scientifique
Appel à propositions
FP7-PEOPLE-2010-RG
Voir d’autres projets de cet appel
Régime de financement
MC-IRG - International Re-integration Grants (IRG)Coordinateur
SW7 2AZ LONDON
Royaume-Uni