 The Problem with Algebraic Models of Marriage Structure  James M. Cargal; The Math Forum
Algebraic models of marriage systems have been in use for nearly fifty years. These models continue to be a matter of controversy. Most anthropologists have found algebraic models abstract and unnecessary. Mathematical scientists have tended to consider
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 Project Poison Applet  Computer Science Dept., Trinity College Dublin
A site created by firstyear computer science students as a Java programming project. Each of 12 topics (Algebra; Geometry; Trigonometry; Calculus; Matrices; Sequences & Series; Complex Numbers; Vectors; Probability; Groups; Further Calculus; Further
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 Quasigroups (Catalogue of Algebraic Systems)  John Pedersen, W. Edwin Clark; Dept. of Mathematics, University of South Florida
Information about quasigroups from the Catalogue of Algebraic Systems. Definition, examples, decision problems, and links to related terms in the Catalogue.
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 Recursion in Space  21 Isometric Models  Ernest V. Miliauskas
Mathematical constructions, subassemblies or subsets of an infinite set, presented in a slide show that demonstrates the author's interest in symmetric threedimensional forms. From chalk talks in advanced spacial studies given at Ryerson University
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 Representations and Cohomology Preprints  Dave Benson
An alphabetical list of dvi and ps files, by author.
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 Ross Geoghegan
A mathematician at the State University of New York at Binghamton interested in topology, geometric group theory, fixed point theory, and dynamics. Curriculum vitae and list of publications (some articles and preprints may be downloaded in PostScript
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 Semigroups (Catalogue of Algebraic Systems)  John Pedersen, W. Edwin Clark; Dept. of Mathematics, University of South Florida
Definition, examples, representations, and decision problems about semigroups.
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 Semigroup Theory  Jim Renshaw
A directory of Semigroup Theorists, bibliographic database, and conferences in Group and Semigroup Theory. With a link to a package for doing commutative diagrams, by Paul Taylor.
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 Seventeen Kinds of Wallpaper Patterns  Mathematics Museum (Japan)
Examples of the 17 wallpaper groups in Japanese culture. Also available in Japanese.
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 A Short Introduction to Symmetry and Groups  Jenny Olive
A beautiful and satisfying area of maths that also has many important applications in areas such as crystallography and particle physics. Olive gives some examples of how symmetry can be described by groups, for which no previous maths is required, and
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 Some Problems & Puzzles  Nancy Casey
Problems inspired by math books (Instant insanity; Penrose rhombs) and friends Larry Copes and Mike Fellows (BikePed, Idaho  also known as Muddy City).
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 Steiner Loops (Catalogue of Algebraic Systems)  John Pedersen, W. Edwin Clark; Dept. of Mathematics, University of South Florida
Definition, examples, and references about Steiner and TS Loops, and links to related terms in the Catalogue.
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 Steiner Quasigroups (Catalogue of Algebraic Systems)  John Pedersen, W. Edwin Clark; Dept. of Mathematics, University of South Florida
Definition, examples, and references about Steiner Quasigroups. Links to related terms in the Catalogue.
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 Steve Fulling's Home Page  Stephen A. Fulling
Courses in Foundation Coalition Freshman Calculus, linearity, and other subjects offer objectives, assignments, solutions and reports, exams, and supporting documentation such as books (.pdf, .ps, and .dvi formats). The site also includes access to the
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 Symmetrica  Lehrstuhl Mathematik II, University of Bayreuth
A collection of routines, written in the programming language C, for doing computations in the representation theory of classical and symmetric groups, and related areas. With a list of papers that mention Symmetrica, and a collection of online programs
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 Symmetric Presentations  J. N. Bray
Presentations of groups, symmetric or otherwise, divided into classes to make location easier. Groups that have just one (finite) nonabelian composition factor up to isomorphism are listed in the first seven sections according to the isomorphism type
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 TS Quasigroups (Catalogue of Algebraic Systems)  John Pedersen, W. Edwin Clark; Dept. of Mathematics, University of South Florida
Definition, examples, and references about TS Quasigroups. Links to related terms in the Catalogue.
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 The Valuation Theory Home Page  FranzViktor Kuhlmann
A forum for all mathematicians who work in valuation theory or apply valuation theoretical results in their own field of research. The home page offers: information about conferences and special events; names and email addresses of mathematicians working
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 Virtual Algebra Center  City College, CUNY
The home of the World Wide Algebra project. This international megaproject has several principal parts, including Algebraic Cryptography, The World of Groups, and The World of Polynomials. These include lists of open problems, conferences and seminars,
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 The Work of Robert Langlands  Mathematics Dept., University of British Columbia, Canada
A selection from Langlands' professional correspondence, previously unpublished work, and published work now out of print. Thesis, papers, manuscripts, letters, and bibliography.
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 Workshop on Finite Groups and Their Automorphisms
A fiveday workshop on the theory of groups, and in particular the relationship between a finite group and another one acted upon by the first. Read about the workshop as well as its mini courses, invited talks, contributed talks, and poster session.
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