Radon transforms and spectral rigidity on the complex quadrics and the real Grassmannians of rank two.
Random lines and tessellations in a plane.
Our purpose is the study of the so called mixed random mosaics, formed by superposition of a given tesellation, not random, of congruent convex polygons and a homogeneous Poisson line process. We give the mean area, the mean perimeter and the mean number of sides of the polygons into which such mosaics divide the plane.
Range characterization of Radon transforms on quaternionic projective spaces.
Range characterization of Radon transforms on quaternionic projective spaces.
Range of the k-dimensional Radon transform in real hyperbolic spaces.
Recent progress on the boundary rigidity problem.
Reconstruction from Limited Data of Arc Means.