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I teach mathematics at Metropolitan State University in Saint Paul, Minnesota and am on leave until fall 2004. I'm interested in molecular biology, theoretical computer science, physics, astronomy, free software, (political) philosophy and chess. My home page is at http://math-www.uni-paderborn.de/~axel/ (http://math-www.uni-paderborn.de/~axel/).

I have contributed to and taken an active interest in the following Wikipedia articles. Since I don't believe that "intellectual property rights" exist, every word I write is by default, and always, in the public domain.

Table of contents

Mathematics

Abelian group -- Adjacency matrix [?] -- Adjoint functors [?] -- Adjugate -- Algebraic geometry [?] -- Algebraic structure [?] -- Antiderivative [?] -- Archimedian spiral [?] -- Associative algebra [?] -- Baire category theorem [?] -- Banach space [?] -- Banach-Tarski paradox -- Bernouilli inequality [?] -- Binomial coefficient [?] -- Binomial theorem [?] -- Bolyai-Gerwien theorem [?] -- Boolean algebra -- Boolean ring [?] -- Borel algebra [?] -- Cartesian closed category [?] -- Catalan number [?] -- Catalan's constant [?] -- Category theory -- Cauchy integral theorem [?] -- Cauchy's integral formula [?] -- Central limit theorem -- Characteristic polynomial [?] -- Chinese remainder theorem -- Closed set [?] -- Collatz conjecture [?] -- Complex number -- Concrete category [?] -- Conjugacy class -- Conjugate transpose [?] -- Continued fraction -- Continuous Fourier transform [?] -- Convergence of random variables [?] -- Counting measure [?] -- Covering map -- Cubic equation [?] -- De Moivre's formula -- Determinant -- Direct sum -- Directed set -- Dirichlet character [?] -- Discrete Fourier transform [?] -- Discrete logarithm [?] -- Discriminant of a polynomial [?] -- Distribution [?] -- Division algebra -- Division ring [?] -- Dual space -- Ellipsoid -- Elliptic curve -- Elliptic function -- Entire function [?] -- Euler's formula -- Euler's four-square identity [?] -- Euler's identity -- Euler's theorem [?] -- Euler-Maclaurin formula [?] -- Expected value [?] -- Exponential function -- Extended Riemann hypothesis [?] -- Extended real number line [?] -- F-space [?] -- Fast Fourier Transform -- Finite field -- Finitely generated abelian group [?] -- Floor function -- Formal power series [?] -- Four color theorem -- Fraction -- Fréchet space [?] -- Free group [?] -- Fundamental Theorem of Calculus -- Galois connection [?] -- Gauss-Bonnet theorem [?] -- Gauss-Jordan elimination [?] -- Generalized mean [?] -- Generalized Riemann hypothesis [?] -- Geometric progression -- Greatest common divisor -- Grothendieck topology [?] -- Group action -- Group homomorphism [?] -- Haar measure -- Hahn-Banach theorem [?] -- Harmonic function [?] -- Harmonic mean [?] -- Harmonic series (mathematics) [?] -- Hausdorff dimension -- Hilbert's basis theorem [?] -- Hilbert's Nullstellensatz [?] -- Hölder's inequality [?] -- Holomorphic function [?] -- Homology (mathematics) [?] -- Homotopy [?] -- Horner scheme [?] -- Hyperbolic function [?] -- Imaginary number [?] -- Independent (probability) -- Initial object [?] -- Inner automorphism [?] -- Integral domain [?] -- Invariance of domain [?] -- Invertible matrix [?] -- Jacobson radical [?] -- Kleene algebra -- Kleene's recursion theorem [?] -- König's lemma [?] -- L'Hopital's rule -- Lagrange inversion theorem -- Lambert's W function [?] -- Landau's function [?] -- Laplace's equation [?] -- Lebesgue measure -- Lie algebra -- Lie group -- Limit (category theory) -- Limit (mathematics) -- Linear congruence theorem -- Linear transformation [?] -- Liouville's theorem [?] -- Lipschitz continuous [?] -- List of mathematical topics -- List of small groups [?] -- Locally compact -- Log-normal distribution [?] -- Logarithmic spiral -- Mathematical class -- Mathematical topos [?] -- Mathematics -- Matroid [?] -- Matrix (mathematics) -- Matrix norm [?] -- Max flow min cut theorem [?] -- Measure of non-compactness [?] -- Miller-Rabin primality test [?] -- Minkowski inequality [?] -- Minkowski's theorem [?] -- Modular arithmetic -- Monster group [?] -- Monty Hall problem -- Nash embedding theorem [?] -- Net -- Newton's method -- Normal distribution -- Normal matrix -- Normal number [?] -- Normal space -- Nowhere dense [?] -- Number theory -- Open mapping theorem [?] -- Open set -- Order of operations [?] -- Paracompact -- Path integral [?] -- Permanent [?] -- Pi -- Pointless topology -- Pole (complex analysis) [?] -- Polygon -- Polynomial -- Positive definite -- Power series [?] -- Prime ideal [?] -- Prime number theorem -- Primitive root modulo n [?] -- Probability density function [?] -- Probability space -- Product (category theory) [?] -- Product of rings [?] -- Proportional [?] -- Quotient space [?] -- Rank of a matrix -- Rectifiable curve [?] -- Reflexive space [?] -- Regression toward the mean [?] -- Residue (complex analysis) [?] -- Residue theorem [?] -- Riemannian manifold [?] -- Riemann hypothesis -- Riemann mapping theorem [?] -- Riemann zeta function [?] -- Riesz representation theorem [?] -- Ring homomorphism [?] -- Ring ideal -- Root of unity [?] -- Sarkovskii's theorem -- Semi-continuous [?] -- Semidirect product [?] -- Shapley value [?] -- Simple group [?] -- Simple module [?] -- Simply connected -- Slope [?] -- Spectrum of a ring [?] -- Stone-Weierstrass theorem [?] -- Substitution rule [?] -- Suslin's problem [?] -- Symmetry [?] -- Tangent -- Tangent space -- Tarski's circle squaring problem [?] -- Taylor series -- Taylor's theorem -- Tensor -- Theorem of Bolzano-Weierstrass [?] -- Theorem of Heine-Borel [?] -- Tietze extension theorem [?] -- Topological group -- Topological ring [?] -- Trace of a matrix [?] -- Triangle [?] -- Tychonoff's theorem [?] -- Uniform convergence [?] -- Uniform space [?] -- Uniformly continuous -- Unique factorization domain -- Universal property [?] -- Urysohn's Lemma -- Vector -- Weierstrass-Casorati theorem [?] -- Whitehead problem [?] -- Yoneda lemma [?]

Logic and Computability

Ackermann function [?] -- Algorithmic information theory [?] -- Chaitin's constant -- Computable number [?] -- Continuum hypothesis -- Definable number -- Entscheidungsproblem [?] -- Epimenides paradox -- First-order predicate calculus -- Gödel's incompleteness theorem -- Gödel's ontological proof -- Lambda calculus -- Liar paradox -- Matiyasevich's theorem [?] -- Ordinal -- Presburger arithmetic -- Principia Mathematica [?] -- Word problem for groups [?]

Computing

A.L.I.C.E. [?] -- Analytical engine -- Birthday attack [?] -- Blender (program) [?] -- CVS [?] -- Colossus computer -- Complexity classes P and NP -- Computer algebra system [?] -- Context-free grammar -- Copyleft -- Difference engine -- Exponentiating by squaring -- GIMPS [?] -- GNU Free Documentation License -- Gnuplot [?] -- History of computing -- ImageMagick [?] -- Literate programming [?] -- MathML [?] -- Mebibyte [?] -- Mizar system [?] -- Multiplication algorithm [?] -- QED project [?] -- Pumping lemma [?] -- Regular language -- Simputer [?] -- Timeline of computing 1950-1979 -- Timeline of computing 1980-1989 [?] -- Timeline of computing 1990-forward [?] -- Timeline of computing 500 BC-1949 -- Timeline of computing -- Time hierarchy theorem [?] -- Turing Test -- Unary [?] -- Windows Meta File [?] -- Z notation

Physics and Astronomy

Atomic mass unit [?] -- Big Bang -- Color -- Dimensional analysis -- Grandfather paradox -- Gyrocompass [?] -- Higgs boson [?] -- Hubble space telescope -- Hubble's law -- Virgo Supercluster [?] -- Physics -- Potential difference -- Prism -- Quantum mechanics -- Redshift -- Refractive index -- Schroedinger equation -- Statcoulomb [?] -- Theory of relativity -- Uncertainty Principle -- Wave-Particle duality

Biology

Acetaminophen -- Alcohol dehydrogenase [?] -- Atherosclerosis -- Bacteria in the human body [?] -- Bartholin's gland -- Beta blocker [?] -- Circulatory system -- Color constancy -- Common cold [?] -- Dendritic cell -- Discrimination abilities of pigeons -- EC number [?] -- ELISA [?] -- Gray whale [?] -- Homologous [?] -- Human skin color -- Ketone bodies [?] -- Low birth weight paradox [?] -- Malaria -- Menstrual cycle -- Naloxone [?] -- Ontogeny and phylogeny [?] -- Peptide bond [?] -- Postpartum depression [?] -- Protein Data Bank -- Pseudomembranous enterocolitis [?] -- Recapitulation theory -- Red blood cell [?] -- Septum [?] -- Timeline of evolution -- Terms for anatomical location -- Toxoplasma gondii [?]

Chemistry

Acetaldehyde -- Carbon dioxide -- CAS registry number [?] -- Citric acid -- Ethanol -- Lactic acid [?] -- Nitric oxide [?] -- Nitrous oxide -- Salt [?] -- Sodium hypochlorite [?] -- UN number [?] -- Wood gas [?] -- Zyklon B [?]

People

Mohammed Farah Aidid [?] -- Alexander Alekhine [?] -- Joan of Arc -- Mohammad Atta -- Aung_San_Suu_Kyi [?] -- Roger Bacon [?] -- Otto von Bismarck [?] -- Napoleon Bonaparte -- Caligula -- Gerolamo Cardano [?] -- John Craig [?] -- Carl Friedrich Gauss -- Billy Graham -- Werner Karl Heisenberg [?] -- Harry Houdini -- Theodore Kaczynski -- Robert Kelly [?] -- Maximillian Kolbe [?] -- Ulrike Meinhof [?] -- Adolphe Quetelet [?] -- Peter III of Russia [?] -- Peter Singer -- Gertrude Stein [?] -- Jesse Ventura -- Leonardo da Vinci -- Otto Weininger [?] -- Stephen Wolfram [?]

Miscellaneous

Amway -- Auschwitz -- Bandwagon effect [?] -- Causality -- Chess strategy and tactics -- Chess -- Chicken Ranch [?] -- Child pornography -- Climate changes of 535-536 [?] -- Cognitive science of mathematics -- De Wallen [?] -- Fontevraud Abbey [?] -- Holocaust -- How to find a book -- Humanae Vitae -- Landmine -- Matrix -- Metropolitan State University [?] -- Mustang Ranch [?] -- Nigerian money transfer fraud [?] -- Philosophy of mathematics -- Polygraph -- Pornography -- Potsdam Conference -- Prosecutor's fallacy -- Prostitution -- Prostitution in Nevada [?] -- Quixtar [?] -- Red eye effect -- Santorum Amendment -- Slogan 'AIDS Kills Fags Dead' -- Tenrikyo [?] -- WordNet

Wikipedia

Making fun of Britannica -- Wikipedia:How to edit a page [?] -- Wikipedia:Searching [?] -- Wikipedia:WikiMoney [?]


Some convenience links for my own use:

Axel Boldt



All Wikipedia text is available under the terms of the GNU Free Documentation License

 
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