Angel "Java" Lopez en Blog

Publicado el 14 de Enero, 2012, 19:24

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Una primera entrega de enlaces de Matemáticas que me interesaron.

Big News
http://www.thebigquestions.com/2011/10/04/big-news/
An example of interaction btw mathematicians, via @fedejack

German mathematical terms like "Nullstellensatz"
http://mathoverflow.net/questions/62218/german-mathematical-terms-like-nullstellensatz

In Defense of Kolmogorov Complexity
http://www.scottaaronson.com/blog/?p=791

Alan Turing: Una historia de nazis y matemáticas
http://corralmatematico.wordpress.com/2011/08/31/alan-turing-una-historia-de-nazis-y-matematicas/

Edición 2.6 del Carnaval de Matemáticas
http://lavacaesferica.com/2011/09/edicion-2-6-del-carnaval-de-matematicas/

Construir un heptágono regular con regla y compás
http://gaussianos.com/construir-un-heptagono-regular-con-regla-y-compas/

Obscure Numbers
http://www.xamuel.com/obscure-numbers/

Division Algebras and Supersymmetry III
http://golem.ph.utexas.edu/category/2011/09/division_algebras_and_supersym_1.html

Michael Aschbacher y la demostración más larga de la historia de las matemáticas
http://amazings.es/2011/09/22/michael-aschbacher-y-la-demostracion-mas-larga-de-la-historia-de-las-matematicas/

Comportamiento de una sucesión con un coseno o con un seno
http://gaussianos.com/comportamiento-de-una-sucesion-con-un-coseno-o-con-un-seno/

Sobre la utilidad directa de las matemáticas
http://gaussianos.com/sobre-la-utilidad-directa-de-las-matematicas/

Primeras construcciones con regla y compás en imágenes
http://gaussianos.com/primeras-construcciones-con-regla-y-compas-en-imagenes/

Mind the map
http://seispalabras-clara.blogspot.com/2011/09/mind-map.html
London metro map history (Spanish)

Particle physics and representation theory
http://en.wikipedia.org/wiki/Particle_physics_and_representation_theory
A key idea in physics

Prize awarded for largest mathematical proof
http://www.newscientist.com/article/dn20893-prize-awarded-for-largest-mathematical-proof.html

Is this Batman equation for real?
http://math.stackexchange.com/questions/54506/is-this-batman-equation-for-real

Game of Life: Phi and pi calculators
http://pentadecathlon.com/lifeNews/2011/01/phi_and_pi_calculators.html

Game of Life: Pi In A Cloudy Sky
http://pentadecathlon.com/lifeNews/2009/03/pi_in_a_cloudy_sky.html

Secret messages hidden inside equations
http://www.walkingrandomly.com/?p=19

Understanding category theory and its practical applications
http://lambda-the-ultimate.org/node/2604

Why numbering should start at zero, Dikjstra
http://www.cs.utexas.edu/users/EWD/ewd08xx/EWD831.PDF

Towards the Mathematics of Quantum Field Theory
http://golem.ph.utexas.edu/category/2011/06/towards_the_mathematics_of_qua.html

The life of pi
http://www.independent.co.uk/news/science/the-life-of-pi-469751.html

El dado egocéntrico - Julio Cortázar
http://brevesnotanbreves.blogspot.com/2009/12/el-dado-egocentrico-julio-cortazar.html

Un lema sobre conjuntos diferentes
http://eliatron.blogspot.com/2011/06/un-lema-sobre-conjuntos-diferentes.html

Why I supported Relatively Prime and you should too
http://travelsinamathematicalworld.blogspot.com/2011/06/why-i-supported-relatively-prime-and.html

The Cotlar-Stein lemma
http://terrytao.wordpress.com/2011/05/25/the-cotlar-stein-lemma/

Touch Mathematics : Trigonometry
http://www.touchmathematics.org/topics/trigonometry

The Lie Bracket of Vector Fields
http://unapologetic.wordpress.com/2011/06/02/the-lie-bracket-of-vector-fields/

The Birkhoff-Kakutani theorem
http://terrytao.wordpress.com/2011/05/17/the-birkhoff-kakutani-theorem/

Expected Value Coin Flipping Paradox
http://www.artofproblemsolving.com/Videos/video.php?video_id=79

Programming is Math, apparently.
http://tagide.com/blog/2011/05/programming-is-math-apparently/

Look-and-say sequence
http://en.wikipedia.org/wiki/Look-and-say_sequence

But It Worked in the Computer Simulation!
http://math-blog.com/2011/06/06/but-it-worked-in-the-computer-simulation/

Extreme examples and counterexamples
http://divisbyzero.com/2011/06/05/extreme-example-and-counterexamples/

From Pi to Puzzles
http://blog.wolfram.com/2011/09/15/from-pi-to-puzzles/
Neil Bickford calculated the first 458 million terms for the continued fraction of pi, breaking the previous record of 180 million. He used Mathematica to develop his code and verify his results—which he posted shortly after he turned 13.

Garrett Lisi on his theory of everything
http://www.ted.com/talks/garrett_lisi_on_his_theory_of_everything.html
And E8 group

S-matrix
http://en.wikipedia.org/wiki/S-matrix
In physics, the scattering matrix (or S-matrix) relates the initial state and the final state of a physical system undergoing a scattering process. It is used in quantum mechanics, scattering theory and quantum field theory.

The Genius in my Basement
http://www.ft.com/cms/s/2/0ad43660-cd76-11e0-b267-00144feabdc0.html#axzz1WQt0C4nO
Alexander Masters" study of an eccentric mathematician is a worthy follow-up to an acclaimed debut

History of Mathematics : Great Mathematicians
http://book-reviews-online.info/history/history-of-mathematics-great-mathematicians/

What is the mission statement of the mathematician?
http://mathbabe.org/2011/08/28/what-is-the-mission-statement-of-the-mathematician/

History topic: A history of Zero
http://www-history.mcs.st-and.ac.uk/PrintHT/Zero.html

The Foundation of Matematics
http://alifmatics.blogspot.com/2009/01/foundation-of-matematics.html

A new proof that the square root of 2 is irrational
http://blog.plover.com/math/sqrt-2-new.html

Counting the number of solutions to the Erdös-Straus equation on unit fractions
http://terrytao.wordpress.com/2011/07/31/counting-the-number-of-solutions-to-the-erdos-straus-equation-on-unit-fractions/

The unplanned impact of mathematics
http://www.nature.com/nature/journal/v475/n7355/full/475166a.html#/comments

The Square Root of Two to 1 Million Digits
http://apod.nasa.gov/htmltest/gifcity/sqrt2.1mil

An elementary way to approach Fourier transforms
http://blog.sigfpe.com/2011/06/another-elementary-way-to-approach.html

The Infinitude of the Primes
http://blog.sigfpe.com/2011/07/infinitude-of-primes.html

A single paper everyone should read?
http://mathoverflow.net/questions/2144/a-single-paper-everyone-should-read

La profesión de matemático
http://www.glc.us.es/~jalonso/vestigium/la-profesion-de-matematico-3/

Formalizing 100 Theorems
http://www.cs.ru.nl/~freek/100/

Fechas de cumpleaños y probabilidades extrañas
http://www.zurditorium.com/fechas-de-cumpleanos-y-probabilidades-extranas

Math Working (Matemáticos por el mundo)
http://seispalabras-clara.blogspot.com/2011/07/math-working-matematicos-por-el-mundo.html

Triángulos disjuntos
http://gaussianos.com/triangulos-disjuntos/

What Tau Sounds Like
http://www.youtube.com/watch?v=3174T-3-59Q

Números y algo mas
http://simplementenumeros.blogspot.com/

Astounding!
http://gaussianos.com/look-and-say-y-la-constante-de-conway/  (Spanish)
http://www.nathanieljohnston.com/2010/10/a-derivation-of-conways-degree-71-look-and-say-polynomial/
Conway's constant is an algebraic number!!!!

Rubik, ever Rubik
http://en.wikipedia.org/wiki/Morwen_Thistlethwaite
http://cube20.org/

Four fours
http://www.dwheeler.com/fourfours/

Zipf's Law
http://en.wikipedia.org/wiki/Zipf%27s_law

Collatz conjecture
http://www.newscientist.com/blogs/shortsharpscience/2011/06/simple-number-puzzle-possibly.html

Practical Foundations of Mathematics (online book)
http://www.cs.man.ac.uk/~pt/Practical-Foundations/html/index.html

Mis enlaces
http://delicious.com/ajlopez/mathematics

Nos leemos!

Angel "Java" Lopez
http://www.ajlopez.com
http://twitter.com/ajlopez