On four-colourings of the rational four-space.
On Lorentz-Minkowski geometry in real inner product spaces.
On metric products
On moduli of expansion of the duality mapping of smooth Banach spaces.
On pairs of metrics invariant under a cocompact action of a group.
On the -angle and -angle in normed spaces.
On the interpoint distance sum inequality.
On the iso-taxicab trigonometry.
On the ordered sets in -dimensional real inner product spaces.
On the plane geometry with generalized absolute value metric.
On the tangency of sets in generalized metric spaces for certain functions of the class
On -distance in three dimensional space.