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Applications of spectral theory of magnetic Schr"odinger operators to non-linear problems.
Prof. Soren Fournais(Aarhus University, Denmark)
2018-01-01 12:13  华东师范大学

研究生短课程

时间: March 22 (Tues.) 1:00-4:00pm;March 24 (Thur.) 1:00-4:00pm;March 28 (Mon.) 3:00-5:00pm;March 31 (Thur.)1:00-3:30pm

摘要: In this series of lectures we will see how methods and results from the (linear) spectral theory of magnetic Schr"odinger operators can be applied to some problems in non-linear PDE. We will mainly consider the example of the optimal semi-classical magnetic Sobolev constants, but another important application would be the analysis of the Ginzburg-Landau model. We will review the needed technology from the concentration-compactness theory to prove existence of minimisers for model problems. Then we proceed to introduce adapted non-linear partitions of unity to derive the leading order of the magnetic Sobolev constants. Finally, we discuss how these results imply information on the localization of minimizers.