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The abstract group concept. Material based on lectures by Peter Neumann.
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Group theory section of the mathematics e-print arXiv.
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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.
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A record of which groups and blocks have been proved to satisfy the conjecture, maintained by Jeremy Rickard.
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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.
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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.
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A Tutorial Introduction to the Coxeter and Weyl Packages, a pair of Maple packages for working with root systems, finite Coxeter groups and Weyl characters
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GAP is a free system for computational discrete algebra.
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Association for the study of the theory of transformation groups and related topics. Members, news, events, publications.
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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.
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On-line book by Prederic Cvitanovic. Available both in 'psd' and 'ps' formats.
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Group theory in: Robotics, Problem-Solving, Planning, Learning, Language, Perception, Art, Design, Engineering, Manufacturing, Epistemology, Measurement, Computation, Neuroscience, Anthropology, Semiotics.
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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.
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Computer calculation of the mod-2 cohomology of groups of order 8, 16, 32 and 64.
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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.
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Part of the Magnus project. Contains over 150 problems in group theory, both well known and relatively new.
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Parallel GAP/MPI (ParGAP/MPI), a share package for GAP. UNIX (or Cygwin/Windows). Download source and documentation by FTP.
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Including proof of the Moonshine Conjecture (TeX,DVI,PDF).
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Compiled by Peter Cameron.
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Web-based resources for permutation groups and related areas in group theory and combinatorics.
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Some presentations of groups (symmetric or otherwise).
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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.
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A worksheet by W.D. Joyner.
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Publication: An Introduction to the Lie Algebras su(N). By Walter Pfeifer, Switzerland. A free copy can be ordered.
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Bibliography, meetings.
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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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Table of contents only; draft chapters can be downloaded by arrangement.
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Parametrisation of trinomials with Galois groups contained in the simple group G168.
