297 search results - page 4 / 60 » Geometric and algebraic combinatorics |
SYNASC
2008
IEEE
14 years 2 months ago
2008
IEEE
We formalize paper fold (origami) by graph rewriting. Origami tion is abstractly described by a rewrite system (O, ), where set of abstract origami’s and is a binary relation on ...
COMBINATORICS
1999
13 years 8 months ago
1999
We define and study m-closed cellular algebras (coherent configurations) and m-isomorphisms of cellular algebras which can be regarded as mth approximations of Schurian algebras (...
EJC
2007
13 years 8 months ago
2007
We investigate the historical roots of the field of combinatorics on words. They comprise applications and interpretations in algebra, geometry and combinatorial enumeration. The...
AMC
2010
13 years 8 months ago
2010
Elimination is a basic algebraic operation which geometrically corresponds to projections. This article describes using the numerical algebraic geometric concept of witness sets t...
COMBINATORICS
2007
13 years 8 months ago
2007
Sylvester’s identity is a classical determinantal identity with a straightforward linear algebra proof. We present combinatorial proofs of several non-commutative extensions, an...