See also:

• Computers: Algorithms  (341)
• Science: Math: Algebra: Group Theory  (34)
• Science: Math: Probability  (111)

Algebraic Combinatorics via Finite Group Actions: - A hypertext by A. Betten, H. Fripertinger and A. Kerber.

ArXiv Front: CO Combinatorics: - Combinatorics section of the Front for the Mathematics ArXiv.

Catalogue of Lattices: - A catalogue of different types with applications to packing spheres by Neil Sloane and Gabriele Nebe.

CATS: Combinatorial Algorithms Test Sets: - Searchable index of problems, links and methodology maintained by the Association for Computing Machinery.

Combinatorial Catalogues: - Combinatorial objects such as graphs, designs and geometries collected by Gordon Royle.

Combinatorial Data: - Brendan McKay's collection of miscellaneous tables in graph6 or sparse6 format.

The Combinatorial Object Server: - Select a type together with specific parameter values and COS will return a list of all such combinatorial objects.

Combinatorics: - Subfields in the AMS MSC 2000 classification 05.

Combinatorics: - MathWorld article with basic definitions and links.




The Combinatorics Net: - Maintained by Bill Chen.

Counting Young Tableaux: - An article on counting Young tableaux of bounded height by François Bergeron and Francis Gascon.

The Cutting Sticks Problem: - An unsolved combinatorial problem by Frans Faase.

Encyclopedia of Combinatorial Structures: - Searchable database of structures with specifications and counts.

Enumeration of Polyhedra: - Enumeration of polyhedra with upto 9 faces by Steven Dutch.

Enumeration of the Binary Trees: - A note on Catalan numbers by Ivan Galkin.

Extremal Combinatorics: - With Applications in Computer Science by Stasys Jukna.

Generating Functions: - Introduction to generating functions with interactive java applets by Alexander Bogomolny.

G-Systems: - Theory of chord structures to create music through algorithms by Vladimir Ladma.




Lectures in Combinatorics: - An introduction to partially ordered sets, Dilworth's theorem, lattices and combinatorial geometries.

The Math Forum Math Library - Combinatorics: - Comprehensive catalog of websites relating to Combinatorics.

A New Proof of the Four Colour Theorem: - By Ashay Dharwadker. Includes profile, research papers for other algorithms, lecture notes, and student database.

On-line Dictionary of Combinatorics: - An expanding web text by Joe Fields.

Polya's Enumeration Theorem: - An article on generating functions and Polya's theory of counting by Karl Dahlke.

Series Expansions: - Iwan Jensen counts polyominoes (aka lattice animals), paths, and various related quantities.

The Seventeen Wallpaper Groups: - Examples in traditional Japanese patterns.

Squared Squares: - Tilings of squares and rectangles, the classical problem and variations.

A Survey of Venn Diagrams: - Various facts and figures about Venn diagrams by Frank Ruskey.




Topics in Mathematics - Combinatorics: - In the Mathematics Archive at University of Tennessee, Knoxville.