报告摘要:The notion of polar foliations is a generalization of the concept of polar actions on Riemannian manifolds. In space forms, polar foliations coincide with isoparametric foliations. In general Riemannian manifolds, these two notions are different from each other. This talk will focus on polar foliations in simply connected symmetric spaces with nonnegative curvature. I will describe re...
AbstractStrata of meromorphic $1$-forms are endowed with the atlas of period coordinates given by the periods of the differential on arcs joining the $n$ zeroes of the differential. Fixing the periods on absolute homology classes defines the isoperiodic foliation.Isoperiodic leaves are complex manifolds of dimension $n-1$ endowed with a translation structure inherited from the period atlas of t...