2-manifold surfaces and space partitions
3D illustrations to Chapter 8 of Cromwell's Polyhedra
A characterization of all equilateral triangles in .
A characterization of continuous associative operations whose graphs are ruled surfaces.
A combinatorial theory of Grünbaum's new regular polyhedra, Part II: Complete enumeration.
A combinatorial theory of Grünbaum's new regular polyhedra, Part I: Grünbaum's new regular polyhedra and their automorphism group.
A conjecture of Stein on plane dissections.
A decomposition of a set definable in an o-minimal structure into perfectly situated sets
A definable subset of a Euclidean space X is called perfectly situated if it can be represented in some linear system of coordinates as a finite union of (graphs of) definable 𝓒¹-maps with bounded derivatives. Two subsets of X are called simply separated if they satisfy the Łojasiewicz inequality with exponent 1. We show that every closed definable subset of X of dimension k can be decomposed into a finite family of closed definable subsets each of which is perfectly situated and such that any...
A Family of Impossible Figures Studied by Knot Theory
A Geometric Realization Without Self-Intersections Does Exist for Dyck's Regular Map.
A method for establishing certain trigonometric inequalities.
A metric characterization of "spherical" surfaces in n-dimensional hyperbolic space.
A note on the existence of -equivelar polyhedral maps.
A parametrization of equilateral triangles having integer coordinates.
A Unified Theory of Proportion
A Unified Theory of Proportion
A Variant of Jung΄s Theorem
Achèvement de la démonstration géométrique élémentaire donnée par Steiner pour ce théorème : «le cercle possède la plus grande parmi toutes les figures planes isopérimètres»
Alternative Proof of Sine's Theorem on the Size of a Regular Polygon in Rn with the l...-Metric.
An Algorithm for Lifting Points in a Tropical Variety