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        Abstract groups: - The abstract group concept. Material based on lectures by Peter Neumann.
        ArXiv Front: GR Group Theory: - Group theory section of the mathematics e-print arXiv.
        Binary Coordinate Systems: - Article by Steven H. Cullinane. Defines "Cartesian" coordinate systems for small finite geometries over the two-element field, and discusses geometrically simple generators for affine group actions.
        Broue's Abelian Defect Group Conjecture: - A record of which groups and blocks have been proved to satisfy the conjecture, maintained by Jeremy Rickard.
        Common Systems of Coset Representatives: - Proof of existence of a common system of representatives for the left and right cosets of a finite subgroup of a group by Ashay Dharwadker.
        Computational Tools for Group Theory: - Describes work to create a program that could be used to generate, identify, and analyze finite groups presented in the form of a Cayley Table as well as visualize the groups that are generated.
        Coxeter/Weyl Tutorial: - A Tutorial Introduction to the Coxeter and Weyl Packages, a pair of Maple packages for working with root systems, finite Coxeter groups and Weyl character.
        GAP - Groups, Algorithms and Programming: - GAP is a free system for computational discrete algebra.
        Group Action Forum: - Association for the study of the theory of transformation groups and related topics. Members, news, events, publications.


        Group Pub Forum Home Page: - These are the community pages for Group Theory, the mathematics of symmetry. Group Theory is a branch of algebra, but has strong connections with almost all parts of mathematics.
        Group Theory: - On-line book by Prederic Cvitanovic. Available both in 'psd' and 'ps' formats.
        International Society for Group Theory in Cognitive Science: - Group theory in: Robotics, Problem-Solving, Planning, Learning, Language, Perception, Art, Design, Engineering, Manufacturing, Epistemology, Measurement, Computation, Neuroscience, Anthropology, Semiotics.
        Introduction to Group Theory: - A fairly easy to understand tutorial. Fourteen sections, including groups, Cayley tables, subgroups, cosets, Lagrange's theorem, cyclic groups and subgroups, permutations, and Rubik's cube.
        The Lie algebras su(N), an introduction: - Publication: An Introduction to the Lie Algebras su(N). By Walter Pfeifer, Switzerland. A free copy can be ordered.
        Mod-2 Cohomology of 2-Groups: - Computer calculation of the mod-2 cohomology of groups of order 8, 16, 32 and 64.
        The Moonshine Page: - Bibliography, meetings.
        New York Group Theory Cooperative: - Software (Magnus), preprints, meetings, links. Magnus - a graphically-oriented system for computational group theory - allows one to explore and experiment with abstract groups without the need for learning yet another programming language. Magnus is freely available software (GPL) based on Tcl/Tk.
        Open Problems in Group Theory: - Part of the Magnus project. Contains over 150 problems in group theory, both well known and relatively new.


        Papers by R. E. Borcherds: - Including proof of the Moonshine Conjecture (TeX, DVI, PDF).
        PARGAP: - Parallel GAP/MPI (ParGAP/MPI), a share package for GAP. UNIX (or Cygwin/Windows). Download source and documentation by FTP.
        Permutation Group Problems: - Compiled by Peter Cameron.
        Permutation Groups Resources: - Web-based resources for permutation groups and related areas in group theory and combinatorics.
        Symmetric Presentations: - Some presentations of groups (symmetric or otherwise).
        Symmetry: - The main point group symmetries of interest to defect physics by operation (reflection, rotations etc) and classification (trigonal, and cubic). Most point groups also have the associated character table on-line.
        Symmetry Groups in Maple V: - A worksheet by W.D. Joyner.
        Topological Methods in Group Theory: - Table of contents only; draft chapters can be downloaded by arrangement.
        Trinomials with Interesting Galois Groups: - Parametrisation of trinomials with Galois groups contained in the simple group G168.


        The World of Groups: - Part of the World Wide Algebra project. Open problems in combinatorial group theory, a list of personal web pages, conferences and seminars, and useful links.

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