MathDB
Pathological planar shapes of any measure

Source: Admission to SNSB, 2002

October 4, 2019
Measure theoryreal analysis

Problem Statement

Present a family of subsets of the plane such that each one of its members is Lebesgue measurable, each one of its members intersects any circle, and the set of Lebesgue measures of all its members is the set of nonnegative real numbers.