A Characterisation of a Simplex.
A conjugate direction method for approximating the analytic center of a polytope.
A construction for periodically-cyclic Gale -polytopes.
A new algebraic criterion for shellability.
A New Formula for the Volume of Lattice Polyhedra.
A New Index for Polytopes.
Acknowledgment of Priority Concerning: Polytopes that Fill R" and Scissors Congruence.
Alexander duality in subdivisions of Lawrence polytopes.
An example of a flexible polyhedron with nonconstant volume in the spherical space.