 Problems in Topological Graph Theory  Dan Archdeacon
An ongoing list of open questions in topological graph theory, to which the author invites contributions. Classical questions on genus; coloring graphs and maps; drawings and crossings; paths, cycles, and matchings; symmetries; locally planar embeddings;
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 Professional Development Programs for Grade K12 Teachers of Mathematics  The State University of New Jersey  Rutgers
Read about and apply for summer institutes such as Institutes for New Teachers of Mathematics and Science, Helping All Students Succeed in Grades 712 Mathematics, the Leadership Program in Discrete Mathematics, and the DIMACS Connect Institute; conferences
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 Professor Badih Ghusayni
Ghusayni, who teaches in the Department of Mathematics at Lebanese University, serves as Founder and Managing Editor of the International Journal of Mathematics and Computer Science. Purchase and download his books and journal articles on complex and
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 Professor Badih Ghusayni's Books  Badih Ghusayni
Books include Solved Problems in Analysis: A Companion to Math Majors, and Number Theory from an Analytic Point of View (for amateurs and professionals alike). The latter work is also available in French.
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 Professor L N Trefethen, Numerical Analysis  Balliol College, Oxford University, UK
Links to books and recent papers by the head of the Numerical Analysis Group at Oxford University. Books include: Spectral Methods in Matlab, Finite Difference and Spectral Methods, Numerical Linear Algebra, and Spectra and Pseudospectra.
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 Professor Salah Mecheri  Salah Mecheri
Home page of a mathematical analysis professor in Saudi Arabia. Includes publications, references, research statements, primarily focused on operator theory.
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 Profile (John H. Conway): Not Just Fun and Games  Mark Alpert, Scientific American
A short biography of the Englishborn Princeton University mathematician and a discussion of some of his major mathematical contributions. ...over the past three decades Conway has made some of his greatest contributions to mathematical theory by analyzing
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 Prof. Kuo's Research Group  University of Southern California
Prof. Kuo's research group is devoted to theoretical issues and practical applications of multimedia information processing, including image, video, graphics, audio and speech signals. Research projects cover multimedia information compression, communication
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 Prognosis  Johann Rost
Business software that uses artificial intelligence and statistical methodology to achieve forecasting accuracy for market shares, sales, profits, demand for services or material, etc. The program does not require a background in statistics or time series
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 Project Euclid  Cornell University Library
Project Euclid seeks to "advance scholarly communication in the field of theoretical and applied mathematics and statistics." Access and distribution plans for journal fulltext content include fulltext searching, reference linking, interoperability
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 project Eureka
project Eureka is a collaboratively edited site for problem solvers/creators—regardless of problem or field. Add problems with quantifiable results; or group problems in a test.
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 Project Hermite  Shayne Waldron
Because bounding the error in Hermite interpolation in terms of the derivative which kills the interpolating space is of interest in numerical analysis and in the analysis of ordinary differential equations, there is an extensive literature on the subject.
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 Project Muse  Johns Hopkins University Press
Worldwide networked subscription access to the full text of the Johns Hopkins University Press's 40+ scholarly journals in the humanities, social sciences, and mathematics. Search for Mathematics, or browse the American Journal of Mathematics.
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 Projet PRISME  INRIA, Sophia Antipolis
Les activités du projet PRISME sont centrées sur la géométrie algorithmique et ses applications, et sur les aspects géométriques de la robotique. Les études sont motivées par les nombreux domaines
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 Prolin: Mixed Linear Integer Programming Solver  Joćo Matos, Ricardo Matos
Free software to handle mixed linear integer programming problems with sensitivity analysis. Windows 2000/XP. In Portuguese.
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 Promoting Engagement and Supporting Leadership Development:
Online Teacher Professional Development at the Math Forum  Wesley Shumar, Jason Silverman, & Troy P. Regis, Drexel University
PDFformat article. Abstract: Teacher professional development (TPD) in its current state is typically episodic, fragmented, and often not rewarding over the long haul. There is need for a more substantial and extensive core set of TPD experiences that
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 Proof  Mariotti, MariaAlessandra; and Pedemonte, Bettina, editors
Archives of the quarterly "international newsletter on the teaching and learning of mathematical proof." Articles have included "The effect of using Transparent PseudoProofs in Linear Algebra," "Beliefs and beyond: hows and whys in the teaching of proof,"
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 The ProvenMath Project  Michal Ryszard Wojcik and Michal Stanislaw Wojcik
Proofs of the Fundamental Theorem of Algebra, the theorem about integration by change of variables for realvalued functions of nvariables, a derivation of Zorn's Lemma, and others. The site renders axioms and derives proofs using only ASCII characters.
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 PR Probability Theory (Front for the Mathematics ArXiv)  Univ. of California, Davis
Probability Theory preprints, from the U.C. Davis front end for the xxx.lanl.gov ePrint archive, a major site for mathematics preprints that has incorporated many formerly independent specialist archives. Search by keyword or browse by topic.
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 Psychology of Mathematics Education  North American chapter
PMENA is an organization of mathematics educators, mathematicians, teachers, consultants, researchers, and others interested in the teaching and learning of mathematics.
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 PTC: Product Lifecycle Management Software  Parametric Technology Corporation
PTC acquired MathSoft, developer of Mathcad and other software for math, science and engineering for business, research, academic and government markets. They also market Pro/ENGINEER, Windchill, Arbortext, ProductView, CoCreate, and InSight.
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 Publications  Douglas N. Arnold; Institute for Mathematics and its Applications
Most of Arnold's papers written since the late 1980s are available in PostScript, TeX DVI or plaintext file format. The Ph.D. theses of students he has supervised are also online. Primary research interests center around numerical analysis, with an emphasis
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 Publications  J. F. Jardine; Mathematics Dept., Univ. of Western Ontario, Canada
On this page there are: a link to a full list of publications; a book subdirectory (Simplicial Homotopy Theory, by P. G. Goerss and J. F. Jardine); and abstracts of papers: A^1local symmetric spectra; Presheaves of symmetric spectra; A rigidity theorem
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 Publications of François Morain
Links to papers on elliptic curves: Primality proving; Complex multiplication; Pseudoprimes; Elliptic curves over finite fields; Discrete logarithm over algebraic curves; Character sums; Miscellaneous. Also in French.
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 Publishing and Journals  Dept. of Statistics, University of California at Los Angeles (UCLA)
Journals and book series edited by UCLA Statistics faculty, and/or distributed by UCLA Statistical Consulting. Journals: Evaluation Review; Journal of Educational and Behavioral Statistics; Journal of Multivariate Analysis; Journal of Statistical Software.
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 Puzzles, & Riddles  The Contest Center  Frank Rubin
Hundreds of puzzles and mathematical problems ranging from kindergarten through postdoctoral levels. For the easier puzzles, answers are provided on the site; names of those who submit correct solutions to harder problems are posted. See also Puzzles
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 pysimplex  Aaron Watters
Mixed Integer Linear programming modules: pysimplex provides some basic symbolic programming tools for constructing, solving and optimizing systems of linear equations and inequalities. It includes an implementation of the classical SIMPLEX linear optimization
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 QA Quantum Algebra (Front for the Mathematics ArXiv)  Univ. of California, Davis
Quantum Algebra preprints, from the U.C. Davis front end for the xxx.lanl.gov ePrint archive, a major site for mathematics preprints that has incorporated many formerly independent specialist archives. Search by keyword or browse by topic.
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 The Quadray Papers  Kirby Urner, 4D Solutions
An Introduction to Quadrays. The game of quadrays starts with a regular tetrahedron and four rays pointing from its center to the four corners; these or any ray built from these rays are labelled 4tuples  i.e. four numbers separated by commas and enclosed
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 The Quake Project  The Department of Civil and Environmental Engineering and the School of Computer Science at Carnegie Mellon University; and the University of Southern California's Southern California Earthquake Center (SCEC)
An NSF and DARPAfunded project developing the capability for predicting, by computer simulation, the ground motion of large basins during strong earthquakes, and using this capability to study the seismic response of the Greater Los Angeles Basin. Research
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 Quanta Magazine  Simons Foundation
Devoted to mathematics and basic science news through public service journalism. See, in particular, Quanta's series subtitled "Experiments in Education"; its column "Quantized," in which researchers explore the process of discovery; and all of its math
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 QuantFinanceJobs.com
The job board for quantitative finance, financial engineering and risk management.
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 Quantitative Finance Code Directory  QuantCode, Inc.
This website serves to be a directory of free source code and other resources useful for Quantitative Finance: jobs, links, papers, free classified ads,
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 The Quantum Age Begins  MacTutor Math History Archives
Linked essay describing the beginnings of quantum theory, from Kirchoff's blackbody radiation work in 1859 to Bohr, Einstein, and von Neumann in the 1930's, with 33 references (books/articles).
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 Quantum Information Page  John Aaron Smolin; UCLA Particle Beam Physics Laboratory (PBPL)
Papers on quantum computation, cryptography, etc.; quantum information on the Net.
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 Quantum Lie Algebras  Gustav Delius
A comprehensive, continuously updated bibliography of literature on Quantum Lie Algebras. Mathematica notebooks containing calculations and animations of quantum root systems are included.
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 QUdata.com  Icestone Trustee Limited
Online tools and reference library resources for data mining and knowledge discovery. Collection of free online statistical and scientific calculators, 2D and 3D function plotters.
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 Query Interface to the Contents of the Mathematics Archives  University of Tennessee, Knoxville (UTK)
Search software, abstracts and reviews; teaching materials, etc. by keyword.
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 Quomodcocumque  Jordan Ellenberg
Blog by a math professor at the University of Wisconsin, Madison. Posts, which date back to June, 2007, have spanned childrearing, the Baltimore Orioles, dining, overheard conversations, and included "Throwing the baby with a math Ph.D. out with the obnoxious
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 Rachel W. Hall's Research Page  Rachel Wells Hall
Rachel W. Hall in the Department of Math and Computer Science, Saint Joseph's University, Philadelphia, PA, offers links to her articles on mathematics and music in PDF format, including: Geometrical Music Theory; A Course in Multicultural Mathematics;
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 The Ramanujan Journal  Frank Garvan
This journal publishes research articles in the areas of mathematics influenced by Srinivasa Ramanujan, specifically number theory. Potential topics include the circle method and asymptotic formulae, diophantine analysis including irrationality and transcendence,
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 Randomness and Geometric Probability (The Geometry Junkyard)  David Eppstein, Theory Group, ICS, UC Irvine
An extensive annotated list of links to material on randomness and geometric probability: Buffon's needle; random domino tilings; random polygons, etc.
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 random.org  Mads Haahr
Generate random numbers on the Internet by using a web form (comparable to throwing dice), randomized sequences (lottery tickets), raw random bytes, virtual coin flips, or bitmaps. All numbers are tested statistically and the results available in realtime.
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 Random Structures and Algorithms  John Wiley & Sons, Inc.
A journal that publishes results concerning random graphs, hypergraphs, matroids, trees, mappings, permutations, matrices, sets and orders, as well as stochastic graph processes and networks, with particular emphasis on the use of probabilistic methods
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 Random Walk on the Speiser Graph of a Riemann Surface [PDF]  Peter G. Doyle
A paper that appeared in the Bulletin of the American Mathematical society, which considers the problem of determining the conformal type of a covering surface of the Riemann sphere with punctures. To such a surface there corresponds a Speiser graph of
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 RA Rings and Algebras (Front for the Mathematics ArXiv)  Univ. of California, Davis
Rings and Algebras preprints, from the U.C. Davis front end for the xxx.lanl.gov ePrint archive, a major site for mathematics preprints that has incorporated many formerly independent specialist archives. Search by keyword or browse by topic.
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 Real Analysis Exchange  Michigan State University Press
The Real Analysis Exchange journal has four sections: conventional research articles; topical surveys, which give an overview of one area of current research activity; "Inroads," intended for a less traditional presentation of information of interest
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 Recent Papers in Category Theory  Prof. George F. Nassopoulos
Recent papers in Category theory and its applications to functional analysis, global analysis, and abstract differential geometry.
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 Recent Progress in the Theory of Elliptic Curves  Henri Darmon
An abstract of Henri Darmon's and Bertolini's work, which approaches a padic variant of the Birch  SwinnertonDyer conjecture, for curves of rank higher than one.
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 Recognizing Numerical Constants (Organic Mathematics Proceedings)  David H. Bailey, Simon Plouffe
Article and presentation. Abstract: The advent of inexpensive, highperformance computers and new efficient algorithms have made possible the automatic recognition of numerically computed constants. In other words, techniques now exist for determining,
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