Upgrading the Local Ergodic Theorem for planar semi-dispersing billiards
Upgrading the Theorem on Local Ergodicity
Upper bound for topological entropy of a meromorphic correspondence
Upper bounding for packing dimension in vectorial multifractal formalism
Upper bounds for the number of limit cycles of some planar polynomial differential systems
Upper bounds for the number of orbital topological types of planar polynomial vector fields "modulo limit cycles"
Upper bounds for the number of zeroes for some Abelian integrals
Using feedback control and Newton iterations to track dynamically unstable phenomena in experiments