1215 search results - page 143 / 243 » Combinatorics |
136
Voted
COMBINATORICS
2002
15 years 3 months ago
2002
In a previous work [26], by considering paths that are partially weighted, the generating function of Dyck paths was shown to possess a type of symmetry, called an exchange relati...
112
Voted
COMBINATORICS
1998
15 years 3 months ago
1998
Voltage graphs are a powerful tool for constructing large graphs (called lifts) with prescribed properties as covering spaces of small base graphs. This makes them suitable for ap...
114
click to vote
COMBINATORICS
1998
15 years 3 months ago
1998
An n-Venn diagram is a collection of n finitely-intersecting simple closed curves in the plane, such that each of the 2n sets X1 ∩X2 ∩· · ·∩Xn, where each Xi is the open...
137
Voted
COMBINATORICS
1998
15 years 3 months ago
1998
We discuss some problems of lattice tiling via Harmonic Analysis methods. We consider lattice tilings of Rd by the unit cube in relation to the Minkowski Conjecture (now a theorem...
126
Voted
DCC
1998
IEEE
15 years 3 months ago
1998
IEEE
We discuss some methods for the enumeration, construction and random generation of isometry classes of block codes using methods from algebraic combinatorics.