What is known about unit cubes
@article{Zong2005WhatIK, title={What is known about unit cubes}, author={Chuanming Zong}, journal={Bulletin of the American Mathematical Society}, year={2005}, volume={42}, pages={181-211} }
Unit cubes, from any point of view, are among the simplest and the most important objects in n-dimensional Euclidean space. In fact, as one will see from this survey, they are not simple at all. On the one hand, the known results about them have been achieved by employing complicated machineries from Number Theory, Group Theory, Probability Theory, Matrix Theory, Hyperbolic Geometry, Combinatorics, etc.; on the other hand, the answers for many basic problems about them are still missing. In…
49 Citations
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References
SHOWING 1-10 OF 175 REFERENCES
Largest j-simplices in d-cubes: Some relatives of the hadamard maximum determinant problem
- Mathematics
- 1996
BORSUK ' S THEOREM AND THE NUMBER OF FACETS OF CENTRALLY SYMMETRIC POLYTOPES
- Mathematics
- 2005
Let C"={x~R": Ix~]<-i i=1 , . . . ,n} be the n-dimensional cube and A be a d-dimensional subspace of R" having no point in common with the ( n d 1 ) dimensional faces of C". We want to find a lower…
Simplices of maximal volume in hyperbolicn-space
- Mathematics
- 1981
An n-simplex in H n with vertices v0, ..., v , 6 Hn U ~H ~ is the dosed subset of Hn bounded by the n + I spheres which contain all the vertices except one and which are orthogonal to S "-1. k…
A Lower Bound for the Simplexity of then-Cube via Hyperbolic Volumes
- MathematicsEur. J. Comb.
- 2000
It is shown that T(n) ?H(n), where H( n) is the ratio of the hyperbolic volume of the ideal cube to the ideal regular simplex, is equivalent to 12·6n/2(n+ 1)?n+12n!.
Lattice Tilings by Cubes: Whole, Notched and Extended
- MathematicsElectron. J. Comb.
- 1998
A new class of simple shapes that admit lattice tilings, the "extended cubes", which are unions of two axis-aligned rectangles that share a vertex and have intersection of odd codimension are exhibited.
A reduction of Keller's conjecture
- Mathematics
- 1986
A family of translates of a closedn-dimensional cube is called a cube tiling if the union of the cubes is the wholen-space and their interiors are disjoint. According to a famous unsolved conjecture…
Lectures on 0/1-Polytopes
- Mathematics, Computer Science
- 2000
Several aspects of the complexity of higher-dimensional 0/1-polytopes are studied: the doubly-exponential number of combinatorial types, the number of facets which can be huge, and the coefficients of defining inequalities which sometimes turn out to be extremely large.
Minimal Simplicial Dissections and Triangulations of Convex 3-Polytopes
- MathematicsDiscret. Comput. Geom.
- 2000
All questions related to minimal triangulations of a three-dimensional convex polytope P have an affirmative answer and the gaps of size produced by allowing interior vertices or by using dissections may be linear in the number of points.