A countable set of directions is sufficient for Steiner symmetrization
A curious arithmetic of fractal dimension for polyadic Cantor sets
A Dense Packing of Regular Tetrahedra
A densest compact planar packing with two sizes of discs
A dichotomy for projections of planar sets
A direct proof of a theorem of Blaschke and Lebesgue
A discrete form of the Beckman-Quarles theorem for mappings from R^2 (C^2) to F^2, where F is a subfield of a commutative field extending R (C)
A discrete version and stability of Brunn Minkowski inequality
A doubling measure on $\R^d$ can charge a rectifiable curve
A dual characterization of length spaces with application to Dirichlet metric spaces
A Family of Recompositions of the Penrose Aperiodic Protoset and Its Dynamic Properties
A finitely-generated amenable group with very poor compression into Lebesgue spaces
A Flow-dependent Quadratic Steiner Tree Problem in the Euclidean Plane
A formulation of the Kepler conjecture
A Fourier type transform on translation invariant valuations on convex sets
A general geometric construction for affine surface area
A generalization of Filliman duality
A generalization of Hausdorff dimension applied to Hilbert cubes and Wasserstein spaces
A generalization of Larman-Rogers-Seidel's theorem
A generalization of Routh's triangle theorem