On the automorphism group of planes of Figueroa type
On the -angle and -angle in normed spaces.
On the bisectors of weakly separable sets.
On the Cayley Factorization of Calotte Conditions.
On the chiral Archimedean solids.
On the classification of 16-dimensional planes.
On the coexistence of various geometries
On the Collineation Groups of Derived Semifield Planes.
On the conformal gauge of a compact metric space
In this article we study the Ahlfors regular conformal gauge of a compact metric space , and its conformal dimension . Using a sequence of finite coverings of , we construct distances in its Ahlfors regular conformal gauge of controlled Hausdorff dimension. We obtain in this way a combinatorial description, up to bi-Lipschitz homeomorphisms, of all the metrics in the gauge. We show how to compute using the critical exponent associated to the combinatorial modulus.
On the constructibility of rational angles.
On the construction of cyclic quadruple systems
On the Contact Dimension of Graphs.
On the curves of constant relative width
On the derivation of the non-Euclidean angle of parallelism function.
On the Difficulty of Triangulating Three-Dimensional Nonconvex Polyhedra.
On the Dimensions of Automorphism Groups of Eight-Dimensional Double Loops.
On the dimensions of automorphism groups of four-dimensional double loops.
On the Erdös-Debrunner inequality.
On the existence and constructibility of inscribed polygons.
On the existence of triangle with given angle and opposite angle bisectors length.