Seminari del Dipartimento di Matematica
Università di Bologna

12 Feb 2015
seminario di analisi matematica
Group actions on the sphere and multiplicity results for the CR-Yamabe equation.
Vittorio Martino
We will show that the CR-Yamabe equation has several families of infinitely many changing sign solutions, each of them having different symmetries. The problem is variational but it is not Palais-Smale: using different complex group actions on the sphere, we will find many closed subspaces on which we can apply the minmax argument.