AbstractThis paper discusses tetrahedra with rational edges forming a geometric progression, focussing on whether they can have rational volume or rational face areas. We examine the 30 possible configurations of such tetrahedra and show that no face of any of these has rational area. We show that 28 of these configurations cannot have rational volume, and in the remaining two cases there are at most six possible examples, and none have been found
We study triangles and cyclic quadrilaterals which have rational area and whose sides form geometric...
This activity is an investigation of a special nonregular tetrahedron that can be arranged to fill s...
AbstractThe present paper investigates two-parameter families of spheres in R3 and their correspondi...
This paper discusses tetrahedra with rational edges forming an arithmetic progression, focussing spe...
AbstractThis paper discusses tetrahedra with rational edges forming an arithmetic progression, focus...
Rational tetrahedra are tetrahedra with rational edges. Heron tetrahedra are tetrahedra with integer...
This paper discusses rational edged tetrahedra, in 3, 4 and n dimensions, with rational volume. The ...
AbstractBuchholz [R.H. Buchholz, Perfect pyramids, Bull. Austral. Math. Soc. 45 (1991) 353–368] bega...
We study the connection of Heronian triangles with the problem of the existence of rational cuboids....
AbstractThe best-known developments of a regular tetrahedron are an equilateral triangle and a paral...
AbstractA rational cuboid is a rectangular parallelepiped whose edges and face diagonals all have ra...
The elementary closure $P'$ of a polyhedron $P$ is the intersection of $P$ with all its Gomory-Chvát...
The bisector surface of two rational surfaces in IR is non-rational, in general. However, in some...
A natural extension of Heron's 2000 year old formula for the area of a triangle to the volume of a t...
If one has three sticks (lengths), when can you make a triangle with the sticks? As long as any two...
We study triangles and cyclic quadrilaterals which have rational area and whose sides form geometric...
This activity is an investigation of a special nonregular tetrahedron that can be arranged to fill s...
AbstractThe present paper investigates two-parameter families of spheres in R3 and their correspondi...
This paper discusses tetrahedra with rational edges forming an arithmetic progression, focussing spe...
AbstractThis paper discusses tetrahedra with rational edges forming an arithmetic progression, focus...
Rational tetrahedra are tetrahedra with rational edges. Heron tetrahedra are tetrahedra with integer...
This paper discusses rational edged tetrahedra, in 3, 4 and n dimensions, with rational volume. The ...
AbstractBuchholz [R.H. Buchholz, Perfect pyramids, Bull. Austral. Math. Soc. 45 (1991) 353–368] bega...
We study the connection of Heronian triangles with the problem of the existence of rational cuboids....
AbstractThe best-known developments of a regular tetrahedron are an equilateral triangle and a paral...
AbstractA rational cuboid is a rectangular parallelepiped whose edges and face diagonals all have ra...
The elementary closure $P'$ of a polyhedron $P$ is the intersection of $P$ with all its Gomory-Chvát...
The bisector surface of two rational surfaces in IR is non-rational, in general. However, in some...
A natural extension of Heron's 2000 year old formula for the area of a triangle to the volume of a t...
If one has three sticks (lengths), when can you make a triangle with the sticks? As long as any two...
We study triangles and cyclic quadrilaterals which have rational area and whose sides form geometric...
This activity is an investigation of a special nonregular tetrahedron that can be arranged to fill s...
AbstractThe present paper investigates two-parameter families of spheres in R3 and their correspondi...