Angel "Java" Lopez en Blog

Publicado el 29 de Marzo, 2020, 12:31

Anterior Post

Lord Brouncker’s continued fraction for π
https://web.maths.unsw.edu.au/~mikeh/webpapers/paper168.pdf

A mathematical model for the novel coronavirus epidemic in Wuhan, China
http://www.aimspress.com/article/10.3934/mbe.2020148

Wolfe Conditions
https://en.wikipedia.org/wiki/Wolfe_conditions

Christoph and the Calendar
https://thonyc.wordpress.com/2016/02/24/christoph-and-the-calendar/

Linear Regression and Kernel Methods
http://www.numerical-tours.com/matlab/ml_2_regression/

Reproducing kernel Hilbert space
https://en.wikipedia.org/wiki/Reproducing_kernel_Hilbert_space

Korovkin-type Theorems and Approximation by Positive Linear Operators
https://arxiv.org/abs/1009.2601

Estructuras Algebraicas
http://www.ehu.eus/juancarlos.gorostizaga/apoyo/estruct_alg.htm

Nos leemos!

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

Publicado el 28 de Marzo, 2020, 18:22

Anterior Post
Siguiente Post

Matemáticas online mientras dure la cuarentena
http://www.aulamagna.com.es/matematicas-online-mientras-dura-la-cuarentena/

Catriona Shearer is great at inventing geometry problems that seem impossible to solve
https://twitter.com/johncarlosbaez/status/1230520859795677184

Aryabhatta I (ca. 5th CE) was an astronomer and a mathematician and hypothesized the rotation of the earth
https://twitter.com/VatsalTrivedi18/status/1230906845839020033

Mathgen; Randomly generated mathematics research papers!
https://thatsmathematics.com/mathgen/

This past Monday marked what would have been mathematician Emmy Noether"s 138th birthday
https://twitter.com/QuantaMagazine/status/1243659920916000772

Catriona Shearer in Twitter
https://twitter.com/Cshearer41/status/1231489403761176576

Irreducible and prime elements
https://math.stackexchange.com/questions/1076517/irreducible-and-prime-elements

In algebraic topology, cohomology classes are cocycle classes. In algebraic geometry, they are Poincare duals of subvarieties. In differential geometry, they are differential forms
https://twitter.com/YuhangChen13/status/1238260647227543557

Nos leemos!

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

Publicado el 22 de Marzo, 2020, 13:00

Anterior Post

Physicists Are Studying Mysterious ‘Bubbles of Nothing’ That Eat Spacetime
https://www.vice.com/en_ca/article/939g5p/physicists-are-studying-mysterious-bubbles-of-nothing-that-eat-spacetime

What Is the Geometry of the Universe?
https://www.quantamagazine.org/what-is-the-geometry-of-the-universe-20200316/

The West is mistaking something big on Singapore's response to Coronavirus
https://twitter.com/dwallbank/status/1239089577354244096

Media briefing on #COVID19 with @DrTedros
https://twitter.com/WHO/status/1241048714971475968

Axions Would Solve Another Major Problem in Physics
https://www.quantamagazine.org/axions-would-solve-another-major-problem-in-physics-20200317/

Coronavirus. 9 claves sobre las rutinas de limpieza y desinfección
https://www.lanacion.com.ar/lifestyle/coronavirus-9-claves-rutinas-limpieza-desinfeccion-nid2342662

Don’t Panic: The comprehensive Ars Technica guide to the coronavirus
https://arstechnica.com/science/2020/03/dont-panic-the-comprehensive-ars-technica-guide-to-the-coronavirus/

Roy Kerr, New Zealand mathematician
https://twitter.com/bgreene/status/1129173214964404225

Nos leemos!

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

Por ajlopez, en: Ciencia

Publicado el 21 de Marzo, 2020, 13:02

Hoy leo en la introducción del excelente "Algebraic number theory and Fermat's last theorem", de Ian Stewart y David Tall

For organizational reasons rather than mathematical necessity, the book is divided into four parts. Part I develops the basic theory from an algebraic standpoint, introducing the ring of integers of a number field and exploring factorization within it. Quadratic and cyclotomic fields are investigated in more detail, and the Euclidean imaginary fields are classified. We then consider the notion of factorization and see how the notion of a 'prime' p can be pulled apart into two distinct ideas. The first is the concept of being 'irreducible' in the sense that p has no factors other than 1 and p. The second is what we now call 'prime': that if p is a factor of the product ab (possibly multiplied by units—invertible elements) then it must be a factor of either a or b. In this sense, a prime must be irreducible, but an irreducible need not be prime. It turns out that factorization into irreducibles is not always unique in a number field, but useful sufficient conditions for uniqueness may be found. The factorization theory of ideals in a ring of algebraic integers is more satisfactory, in that every ideal is a unique product of prime ideals. The extent to which factorization is not unique can be 'measured' by the group of ideal classes (fractional ideals modulo principal ones).

Es un tema más que interesante: uno, basado en el manejo de enteros y naturales, tiende a poner como equivalentes los conceptos de número primo y número irreducible. Pero se vió (justamente en el siglo XIX, tratando de demostrar el ultimo teorema de Fermat) que no es el caso: hay sistemas de números (anillos) donde no se cumple la equivalencia.

Ver

Irreducible and prime elements
https://math.stackexchange.com/questions/1076517/irreducible-and-prime-elements

Luego, si quieren algo más en profundidad, y cómo afecta esto a varias estructuras algebraicas:

Irreducible Elements
https://en.wikipedia.org/wiki/Irreducible_element

Any Prime is Irreducible
https://math.stackexchange.com/questions/69504/any-prime-is-irreducible

Prime implies Irreducible
https://math.stackexchange.com/questions/1149078/prime-implies-irreducible

Irreducible Elements in a Principal Ideal Domain are Prime
https://math.stackexchange.com/questions/770731/irreducible-elements-in-a-pid-are-prime

Irreducible Elements in an Unique Factorization Domain are Prime
https://math.stackexchange.com/questions/257955/irreducibles-are-prime-in-a-ufd

A principal ideal ring that is not a euclidean ring
http://www.math.buffalo.edu/~dhemmer/619F11/WilsonPaper.pdf

Ring of integers is a Principal Ideal Domain but not a Euclidean domain
https://math.stackexchange.com/questions/857971/ring-of-integers-is-a-pid-but-not-a-euclidean-domain

An example of a principal ideal domain which is not a Euclidean domain
http://www.maths.qmul.ac.uk/~raw/MTH5100/PIDnotED.pdf

En este blog, algo traté del tema cuando comenté

Libro: Abstract Algebra, de Carstensen, Fine, Rosenberg (4)
http://ajlopez.zoomblog.com/archivo/2016/06/28/libro-Abstract-Algebra-de-Carstensen-F.html

Libro: Abstract Algebra, de Carstensen, Fine, Rosenberg (3)
http://ajlopez.zoomblog.com/archivo/2016/06/27/libro-Abstract-Algebra-de-Carstensen-F.html

Libro: Abstract Algebra, de Carstensen, Fine, Rosenberg (2)
http://ajlopez.zoomblog.com/archivo/2016/06/26/libro-Abstract-Algebra-de-Carstensen-F.html

Libro: Abstract Algebra Structure and Application, de Finston y Morandi
http://ajlopez.zoomblog.com/archivo/2016/06/14/libro-Abstract-Algebra-Structure-and-A.html

En esos libros aparece más detallado la evolución del concepto, en especial, la aparición de ideales primos, que de nuevo, tuvo su origen en los intentos de demostración del ultimo teorema de Fermat, por parte de Kummer y sus números ideales, una extension para conseguir la factorización única, luego levantada por Dedekind para formar los ideales primos. Esa extension del concepto de número resultó fructífera, como se ve en los capítulos de los libros mencionados arriba.

Nos leemos!

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

Publicado el 14 de Marzo, 2020, 10:45

Anterior Post
Siguiente Post

In Ecology Studies and Selfless Ants, He Finds Hope for the Future
https://www.quantamagazine.org/edward-o-wilson-finds-hope-in-selfless-ants-and-ecology-studies-20190515

El pH y yo
https://atomosmoleculasenlaces.home.blog/2019/05/16/el-ph-y-yo/

Coronavirus: Early Outbreak Response Guidelines
https://www.endcoronavirus.org/page/guidelines

Ask Ethan: It's Absurd To Think Dark Matter Might Be Made Of Hexaquarks, Right?
https://www.forbes.com/sites/startswithabang/2020/03/14/ask-ethan-its-absurd-to-think-dark-matter-might-be-made-of-hexaquarks-right/

A mathematical model for the novel coronavirus epidemic in Wuhan, China
http://www.aimspress.com/article/10.3934/mbe.2020148

En la ciudad noruega de Rjukan, Sam Eyde, dueño de una empresa de fertilizantes, pasaba horas y horas pensando en cómo solucionar un problema que aquejaba a sus habitantes desde siempre
https://twitter.com/ValeArvejita/status/1237015784330854403

The kilo is dead. Long live the kilo!
http://news.mit.edu/2019/kilo-standard-change-0516

La supercomputadora más poderosa del mundo detectó las posibles llaves para combatir el coronavirus
https://www.clarin.com/sociedad/supercomputadora-poderosa-mundo-detecto-posibles-llaves-combatir-coronavirus_0_gsHDbD0R.html

Nos leemos!

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

Por ajlopez, en: Ciencia

Publicado el 9 de Marzo, 2020, 13:31

Ya estamos entrando en el año 2020, por lo menos por estos lares, Buenos Aires, donde se va a terminar el verano. Revisión de las resoluciones del mes pasado:

- Escribir sobre Matemáticas [pendiente]
- Escribir sobre Física [completo] ver repositorio
- Escribir sobre Historia de las Matemáticas [pendiente]
- Escribir sobre Historia de la Ciencia [pendiente]
- Estudiar blues en guitarra [completo]
- Estudiar dibujo/pintura [completo]

Resoluciones para el nuevo mes:

- Escribir sobre Matemáticas
- Escribir sobre Física
- Escribir sobre Historia de las Matemáticas
- Escribir sobre Historia de la Ciencia
- Estudiar blues en guitarra

Nos leemos!

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

Publicado el 8 de Marzo, 2020, 13:50

Anterior Post
Siguiente Post

Rapid Oxygen Changes Fueled an Explosion in Ancient Animal Diversity
https://www.quantamagazine.org/rapid-oxygen-changes-fueled-an-explosion-in-ancient-animal-diversity-20190509

Leones convertidos en devorahombres por una espina en el hocico
https://www.abc.es/ciencia/abci-leones-convertidos-devorahombres-espina-hocico-201905080121_noticia.html

We Have Now Reached The Limits Of The Hubble Space Telescope
https://www.forbes.com/sites/startswithabang/2019/05/09/we-have-now-reached-the-limits-of-the-hubble-space-telescope/#4a3a5cbc3208

Orgasmos animales
https://www.filo.news/ciencia/Orgasmos-animales-20190509-0029.html

Ask Ethan: How Well Has Cosmic Inflation Been Verified?
https://www.forbes.com/sites/startswithabang/2019/05/11/ask-ethan-how-well-has-cosmic-inflation-been-verified/#6b65c99c1d07

Dorothy Crowfoot Hodgkin
https://twitter.com/ValeArvejita/status/1067172112819998722

How do we measure the distance to a galaxy and why is it so important?
https://blog.oup.com/2019/05/how-we-measure-distance-galaxy-why-important/

Striking Down the Queen Won"t Save You From the Swarm
https://www.nytimes.com/2019/05/14/science/hives-queens-science-fiction.html

Nos leemos!

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

Por ajlopez, en: Ciencia

Publicado el 7 de Marzo, 2020, 14:09

Anterior Post
Siguiente Post

To square root the Lagrangian or not: an underlying geometrical analysis on classical and relativistic mechanical models
https://arxiv.org/abs/1905.01177

In the Nucleus, Genes" Activity Might Depend on Their Location
https://www.quantamagazine.org/in-the-nucleus-genes-activity-might-depend-on-their-location-20181106/

Cosmology's Only Big Problems Are Manufactured Misunderstandings
https://www.forbes.com/sites/startswithabang/2019/05/07/cosmologys-only-big-problems-are-manufactured-misunderstandings/#4f61d4585913

Anomalous asymmetry
https://www.nature.com/articles/s41567-019-0523-7

El sistema de periodos
https://culturacientifica.com/2019/05/07/el-sistema-de-periodos/

Synthesis and breakdown of universal metabolic precursors promoted by iron
https://www.nature.com/articles/s41586-019-1151-1

Jammed Cells Expose the Physics of Cancer
https://www.quantamagazine.org/jammed-cells-expose-the-physics-of-cancer-20160816/

Black, Hot Ice May Be Nature"s Most Common Form of Water
https://www.quantamagazine.org/black-hot-superionic-ice-may-be-natures-most-common-form-of-water-20190508

Nos leemos!

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

Por ajlopez, en: Ciencia

Publicado el 29 de Febrero, 2020, 13:57

Anterior Post
Siguiente Post

Botanical Sexism Cultivates Home-Grown Allergies
https://blogs.scientificamerican.com/guest-blog/botanical-sexism-cultivates-home-grown-allergies/

Ask Ethan: How Does The Event Horizon Telescope Act Like One Giant Mirror?
https://www.forbes.com/sites/startswithabang/2019/05/04/ask-ethan-how-does-the-event-horizon-telescope-act-like-one-giant-mirror/#2970680f69b5

The functional determinant of D as the Feynman path integral
https://twitter.com/InertialObservr/status/1124729163082919936

La curva de rotación de las galaxias de bajo brillo superficial incumple la idea MOND
https://francis.naukas.com/2019/05/04/la-curva-de-rotacion-de-las-galaxias-de-bajo-brillo-superficial-incumple-la-idea-mond/

Sobre el desarrollo científico
https://twitter.com/waltzing_piglet/status/1124796416558292992

The Revolution That Didn't Happen
https://www.physics.utah.edu/~detar/phys4910/readings/fundamentals/weinberg.html

El experimento de doble rendija usando antimateria (positrones)
https://francis.naukas.com/2019/05/05/el-experimento-de-doble-rendija-usando-antimateria-positrones/

Universal Pattern Explains Why Materials Conduct
https://www.quantamagazine.org/universal-pattern-explains-why-materials-conduct-20190506/

Nos leemos!

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

Por ajlopez, en: Ciencia

Publicado el 25 de Febrero, 2020, 11:42

Anterior Post
Siguiente Post

Albert Einstein with an Einstein Puppet
https://twitter.com/phalpern/status/1224162802874638337

The muon
https://www.symmetrymagazine.org/article/may-2012/the-muon

The Year in Physics
https://www.quantamagazine.org/quantas-year-in-physics-2019-20191223/

Why is the night sky dark?
http://www.astronomy.com/magazine/ask-astro/2019/11/why-is-the-night-sky-dark

In Brain Waves, Scientists See Neurons Juggle Possible Futures
https://www.quantamagazine.org/in-brain-waves-scientists-see-neurons-juggle-possible-futures-20200224

Cosmology's Biggest Conundrum Is A Clue, Not A Controversy
https://www.forbes.com/sites/startswithabang/2019/05/03/cosmologys-biggest-conundrum-is-a-clue-not-a-controversy/#6df7bc0178ea

The Universe is a watermelon
https://twitter.com/dcastelvecchi/status/1161587847520018433

The quest to unlock the secrets of the baby Universe
https://www.nature.com/articles/d41586-019-02417-7

Nos leemos!

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

Por ajlopez, en: Ciencia

Publicado el 24 de Febrero, 2020, 11:41

Anterior Post
Siguiente Post

Measuring a particle's spin in a rapidly rotating object
https://phys.org/news/2020-01-particle-rapidly-rotating.html

The map of chemistry
https://www.flickr.com/photos/95869671@N08/34536396162

What's the difference between a polaron and a polariton?
https://twitter.com/johncarlosbaez/status/1225479911197949952

A New Type of Li-Fi Has Reportedly Cracked 40 Gbps, 100 Times Faster Than The Best Wi-Fi
https://www.sciencealert.com/a-new-type-of-li-fi-has-reportedly-cracked-40-gigabits-per-second-100-times-faster-than-regular-wi-fi

Structure of novel coronavirus spike protein solved in just weeks
https://cen.acs.org/analytical-chemistry/structural-biology/Structure-novel-coronavirus-spike-protein/98/i8

Did the Chicken Come First or Is It Turtles All the Way Down?
https://www.quantamagazine.org/puzzle-with-infinite-regress-is-it-turtles-all-the-way-down-20200206/

Listen to Albert Einstein explain his famous formula, E=mc²
https://twitter.com/ValaAfshar/status/1224452690500915206

Max Planck was the first established physicist to embrace Einstein's work on special relativity
https://twitter.com/johncarlosbaez/status/1224387075933237248

Nos leemos!

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

Por ajlopez, en: Ciencia

Publicado el 23 de Febrero, 2020, 8:42

Anterior Post
Siguiente Post

The Category Theory Behind UMAP
https://twitter.com/johncarlosbaez/status/1226898580792737794
https://johncarlosbaez.wordpress.com/2020/02/10/the-category-theory-behind-umap/

The science checklist applied: Mathematics
https://undsci.berkeley.edu/article/mathematics

Rainbow Proof Shows Graphs Have Uniform Parts
https://www.quantamagazine.org/mathematicians-prove-ringels-graph-theory-conjecture-20200219/

Equations that changed the world
https://twitter.com/ProfFeynman/status/1227435683385663488

Every number greater than 55 is the sum of distinct primes of the form 4n+3
https://twitter.com/fermatslibrary/status/1229034200432594946

The Map of Mathematics
https://www.quantamagazine.org/the-map-of-mathematics-20200213/

The Freyd-Mitchell Embedding Theorem
https://arxiv.org/abs/1901.08591

Introduction to Clifford Algebra
https://www.av8n.com/physics/clifford-intro.htm

Nos leemos!

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

Publicado el 22 de Febrero, 2020, 11:30

Anterior Post
Siguiente Post

The Year in Biology
https://www.quantamagazine.org/quantas-year-in-biology-2019-20191223/

Quantum Questions Inspire New Math
https://www.quantamagazine.org/how-quantum-theory-is-inspiring-new-math-20170330/

Mind-blowing: Richard Feynman explains how trees come mainly from the air, not the ground
https://twitter.com/SteveStuWill/status/1228421597230317568

A pair of Calabi-Yau manifolds as an exactly soluble superconformal theory
https://www.sciencedirect.com/science/article/pii/0550321391902926

A Fight to Fix Geometry"s Foundations
https://www.quantamagazine.org/the-fight-to-fix-symplectic-geometry-20170209

Einstein, Edison and an Aptitude for Genius
https://medium.com/starts-with-a-bang/einstein-edison-and-an-aptitude-for-genius-31a41a1947f1

The Grand Unified Theory of Rogue Waves
https://www.quantamagazine.org/the-grand-unified-theory-of-rogue-waves-20200205/?mc_cid=edd414909d&mc_eid=c608d388a6

La guerra evolutiva con las orcas explica las muertes masivas de zifios
https://www.vozpopuli.com/altavoz/next/guerra-evolutiva-explica-muertes-masivas_0_1324968878.html

Nos leemos!

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

Por ajlopez, en: Ciencia

Publicado el 16 de Febrero, 2020, 15:06

Anterior Post
Siguiente Post

Mathematical model reveals best auction strategy
https://www.newscientist.com/article/dn3678-mathematical-model-reveals-best-auction-strategy/

Why Is M-Theory the Leading Candidate for Theory of Everything?
https://www.quantamagazine.org/why-is-m-theory-the-leading-candidate-for-theory-of-everything-20171218

But what is the Fourier Transform? A visual introduction.
https://www.youtube.com/watch?v=spUNpyF58BY&feature=emb_logo

There"s something special about four-sided figures packed into circles
https://twitter.com/brilliantorg/status/1228741327984189442

Construcciones con regla y compás (III): Los polígonos regulares - Gaussianos
https://www.gaussianos.com/construcciones-con-regla-y-compas-iii-los-poligonos-regulares/

Números primos gemelos y demás familia - Gaussianos
https://www.gaussianos.com/numeros-primos-gemelos-y-demas-familia/

Great Woman of Mathematics: Katherine Johnson
https://twitter.com/GWOMaths/status/1191782750489063425

Color-Changing Material Unites the Math and Physics of Knots
https://www.quantamagazine.org/color-changing-material-unites-the-math-and-physics-of-knots-20200210/

Nos leemos!

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

Publicado el 15 de Febrero, 2020, 14:33

Anterior Post
Siguiente Post

Escher ¿Qué hay en el agujero del medio?
https://twitter.com/pgroisma/status/1223195461693079554

Quantum Questions Inspire New Math
https://www.quantamagazine.org/how-quantum-theory-is-inspiring-new-math-20170330/

Proof that √2 is irrational
https://twitter.com/fermatslibrary/status/1228675333710372864

A pair of Calabi-Yau manifolds as an exactly soluble superconformal theory☆
https://www.sciencedirect.com/science/article/pii/0550321391902926

A Fight to Fix Geometry"s Foundations
https://www.quantamagazine.org/the-fight-to-fix-symplectic-geometry-20170209

Karmarkar's algorithm
https://en.wikipedia.org/wiki/Karmarkar%27s_algorithm

Auction Theory
https://en.wikipedia.org/wiki/Auction_theory

It may surprise you to learn how much insight into auctions mathematics has been able to provide in recent years...
http://www.ams.org/publicoutreach/feature-column/fc-2011-09

Nos leemos!

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

Publicado el 10 de Febrero, 2020, 13:04

Ya pasó el primer mes del año. Repaso de las resoluciones de enero:

- Escribir sobre Matemáticas [pendiente]
- Escribir sobre Física [pendiente]
- Escribir sobre Historia de las Matemáticas [pendiente]
- Escribir sobre Historia de la Ciencia [pendiente]
- Estudiar blues en guitarra [completo]
- Estudiar dibujo/pintura [completo] evidencia

Resoluciones del nuevo mes:

- Escribir sobre Matemáticas
- Escribir sobre Física
- Escribir sobre Historia de las Matemáticas
- Escribir sobre Historia de la Ciencia
- Estudiar blues en guitarra
- Estudiar dibujo/pintura

Nos leemos!

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

Publicado el 9 de Febrero, 2020, 11:32

Anterior Post
Siguiente Post

A Visual Proof
https://twitter.com/fermatslibrary/status/1221801036328980480

Los secretos matemáticos del embaldosado
https://www.abc.es/ciencia/abci-secretos-matematicos-embaldosado-202001270158_noticia.html

Harris Corner Detector
https://twitter.com/gabrielpeyre/status/1222398971043205120
https://en.wikipedia.org/wiki/Harris_Corner_Detector

Ellipsoid Method
https://en.wikipedia.org/wiki/Ellipsoid_method

Probability Distribution Fitting
https://en.wikipedia.org/wiki/Probability_distribution_fitting

El Oráculo de Aaronson
https://www.microsiervos.com/archivo/azar/oraculo-aaronson-adivina-teclas.html

Continuous Fraction for Square Root
https://twitter.com/pickover/status/1226215813264351233

Mathematics is the only infinite human activity
https://twitter.com/pickover/status/1226217934168711173

Nos leemos!

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

Publicado el 8 de Febrero, 2020, 12:34

Anterior Post
Siguiente Post

Metaballs
https://en.wikipedia.org/wiki/Metaballs

Jim Blinn
https://en.wikipedia.org/wiki/Jim_Blinn

The Quasi-Stationary Distribution of the Subcritical Contact Process
https://twitter.com/pgroisma/status/1225749509747150848
https://arxiv.org/pdf/1908.04175.pdf

A Chemist Shines Light on a Surprising Prime Number Pattern
https://www.quantamagazine.org/a-chemist-shines-light-on-a-surprising-prime-number-pattern-20180514/

Reverse Mode Differentiation is Kind of Like a Lens II
http://www.philipzucker.com/reverse-mode-differentiation-is-kind-of-like-a-lens-ii/

Ring of Periods
https://twitter.com/fermatslibrary/status/1220710857170210819nn
https://en.wikipedia.org/wiki/Ring_of_periods

Projective Geometric Algebra Done Right
http://terathon.com/blog/projective-geometric-algebra-done-right/

A survey of the Schrödinger problem and some of its connections with optimal transport
https://arxiv.org/abs/1308.0215

Nos leemos!

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

Publicado el 2 de Febrero, 2020, 12:00

Anterior Post
Siguiente Post

El Cerebro de Einstein
https://twitter.com/ValeArvejita/status/1210684528504823811

El misterio de ANITA vuelve a ser noticia
https://francis.naukas.com/2020/01/28/el-misterio-de-anita-vuelve-a-ser-noticia/

Physicist Kathleen Yardley Lonsdale
https://twitter.com/mcnees/status/1222164595072126976

How Certain Are We That Protons Don't Decay?
https://www.forbes.com/sites/startswithabang/2020/01/03/how-certain-are-we-that-protons-dont-decay/#621d260f3544

NGC 4455: A nearby galaxy that's the stepping stone to the Universe
https://www.syfy.com/syfywire/ngc-4455-a-nearby-galaxy-thats-the-stepping-stone-to-the-universe

In 1947 Schrödinger predicted that a rotating mass would generate a magnetic field
https://twitter.com/johncarlosbaez/status/1210628668835299328

Schrödinger wrote to Einstein
https://twitter.com/johncarlosbaez/status/1210607014247714817

Nos leemos!

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

Por ajlopez, en: Ciencia

Publicado el 1 de Febrero, 2020, 17:19

Anterior Post
Siguiente Post

Mathematicians explain an uncertain law of physics
https://cosmosmagazine.com/physics/mathematicians-provide-explanation-for-an-uncertain-law-of-physics

How Ancient Light Reveals the Universe"s Contents
https://www.quantamagazine.org/how-the-cosmic-microwave-background-reveals-the-universes-contents-20200128/

Alfred Russel Wallace
https://twitter.com/mcnees/status/1214947397450645504

Gravitational waves: Cosmic vibrations sensed from unusual star merger
https://www.bbc.com/news/science-environment-51020604

Einstein and Nazi Physics
https://ojs.uv.es/index.php/Metode/article/view/13472/14905

Homenaje a Faraday
https://twitter.com/aberron/status/901417685933862912

Contemos Historias
https://twitter.com/ValeArvejita/status/1210908673150726144

Schrödinger & Einstein helped invent quantum mechanics, but they didn't really believe in it
https://twitter.com/johncarlosbaez/status/1209885293307817984

Nos leemos!

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

Por ajlopez, en: Ciencia