Variational problems of isoperimetric type. Stability and Geometric flows (research costs) (SAiso)


Main funder

Funder's project number: 314227


Funds granted by main funder (€)

  • 210 000,00


Funding program


Project timetable

Project start date: 01/09/2017

Project end date: 31/08/2020


Summary

The isoperimetric inequality states that balls have the smallest surface area among all sets with same volume. This is a fundamental
result in geometric measure theory, since it provides a link between analysis and geometry. The stability of the isoperimetric inequality
means to study the following question: if the surface area of a set is close to the surface area of the ball, does the set look like the ball?
The goal of this project is to establish new stability results for relevant isoperimetric inequalities.
These results give new information on minimizers of geometric variational problems which are characterized by a competition of
short-range attractive and long-range repulsive forces. Such problems arise for instance in material physics and in nuclear physics. We
will also study the stability of geometric flows associated with these energies. In particular, the aim is to study the behavior of these
flows near local minimum points. The stability of geometric inequalities is also used to obtain sharp quantitative estimates for
homogenization of Faber-Krahn type problems.


Principal Investigator


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Last updated on 2021-17-03 at 12:08