Geometric extremes
Packing, covering, distances and other limits set by geometry.
11 problemsCollections
Selected problems that share a subject or a research tradition. Each leads to its own overview and sources.
Within Analysis and dynamics · All collections
Dynamics
Repeated maps, billiard trajectories and periodic motion.
5 problemsGroups and operators
Structure in groups, representations and infinite-dimensional spaces.
7 problemsRandom geometry
Fastest paths and self-avoiding walks ask for different geometric limits in random models.
2 problemsLinear recurrences
Two different decisions about recurrence sequences: whether a zero occurs and whether all terms are nonnegative.
2 problemsWaves and spectra
Vibration frequencies, high-frequency wave patterns and reconstruction from frequency information.
3 problems