5 problems
Let and let be an -dimensional convex body. A positive homothetic copy of is a set of the form with and . Hadwige…
Bezdek's illumination conjecture. There exists a positive constant such that
Fractional illumination conjecture. If every affine image of is different from the hypercube , then
For a compact set in , a boundary point is illuminated by a direction if the corresponding half-line enters the interior of arbitrarily close to that point.…