692 search results - page 5 / 139 » Combinatorics of Partial Derivatives |
COMBINATORICS
2007
13 years 10 months ago
2007
We define a partial order on colored compositions with many properties analogous to Young’s lattice. We show that saturated chains correspond to colored permutations, and that ...
CORR
2008
Springer
2008
Springer
Declarative Combinatorics: Isomorphisms, Hylomorphisms and Hereditarily Finite Data Types in Haskell
13 years 10 months ago
This paper is an exploration in a functional programming framework of isomorphisms between elementary data types (natural numbers, sets, finite functions, permutations binary deci...
COMBINATORICS
2002
13 years 10 months ago
2002
Erdos, Rubin, and Taylor found a nice correspondence between the minimum order of a complete bipartite graph that is not r-choosable and the minimum number of edges in an r-unifor...
COMBINATORICS
2004
13 years 10 months ago
2004
This paper deals with evaluating constant terms of a special class of rational functions, the Elliott-rational functions. The constant term of such a function can be read off immed...
COMBINATORICS
2006
13 years 10 months ago
2006
Sommerville [8] and Davies [2] classified the spherical triangles that can tile the sphere in an edge-to-edge fashion. Relaxing this condition yields other triangles, which tile t...