Angel "Java" Lopez en Blog

Publicado el 28 de Junio, 2020, 13:00

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Blaschko's lines
https://en.wikipedia.org/wiki/Blaschko%27s_lines

The (but I’m Not a) Crackpot Style Guide
https://4gravitons.com/2016/07/01/the-but-im-not-a-crackpot-style-guide/

The mystery of the true coronavirus death rate
https://www.ft.com/content/f3796baf-e4f0-4862-8887-d09c7f706553

New physics discovery from the Microsoft Quantum team: topology with a twist
https://cloudblogs.microsoft.com/quantum/2020/03/27/new-physics-discovery-microsoft-quantum-topology-with-a-twist/

Viruses Can Scatter Their Genes Among Cells and Reassemble
https://www.quantamagazine.org/viruses-can-scatter-their-genes-among-cells-and-reassemble-20190521/

Impact of non-pharmaceutical interventions (NPIs) to reduce COVID19 mortality and healthcare demand
https://www.imperial.ac.uk/media/imperial-college/medicine/sph/ide/gida-fellowships/Imperial-College-COVID19-NPI-modelling-16-03-2020.pdf

Un informe advierte de que las medidas de distanciamiento social podrían ser necesarias hasta 18 meses
https://elpais.com/ciencia/2020-03-17/un-informe-advierte-de-que-las-medidas-de-distanciamiento-social-podrian-ser-necesarias-hasta-18-meses.html

Method of estimating the number of infected people from the number of deaths
https://twitter.com/wtgowers/status/1242823142088851456

Nos leemos!

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

Por ajlopez, en: Ciencia

Publicado el 27 de Junio, 2020, 13:06

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John Hopkins Coronavirus
https://coronavirus.jhu.edu/map.html

A multiplanet system of super-Earths orbiting the brightest red dwarf star GJ 887
https://science.sciencemag.org/content/368/6498/1477

Stem Cells Remember Tissues" Past Injuries
https://www.quantamagazine.org/stem-cells-remember-tissues-past-injuries-20181112/

Coronavirus: cómo funcionan los respiradores y por qué la desesperada carrera por fabricar más es clave en la batalla contra covid-19
https://www.bbc.com/mundo/noticias-52060716

Respiratory virus shedding in exhaled breath and efficacy of face masks
https://www.nature.com/articles/s41591-020-0843-2

Astrophysics Signal Does What The LHC Cannot: Constrain Quantum Gravity And String Theory
https://www.forbes.com/sites/startswithabang/2020/04/03/astrophysics-signal-does-what-the-lhc-cannot-constrain-quantum-gravity-and-string-theory/#695ed2252507

The proximal origin of SARS-CoV-2
https://www.nature.com/articles/s41591-020-0820-9#ref-CR20
https://twitter.com/pmarsupia/status/1246891625630048256

The outbreak that invented intensive care
https://www.nature.com/articles/d41586-020-01019-y

Nos leemos!

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

Por ajlopez, en: Ciencia

Publicado el 21 de Junio, 2020, 13:36

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Males Are the Taller Sex. Estrogen, Not Fights for Mates, May Be Why.
https://www.quantamagazine.org/men-are-the-taller-sex-estrogen-not-fights-for-mates-may-be-why-20200608

Sorry, Astronomers: Practically All Of The Universe's Matter Is Still Missing
https://www.forbes.com/sites/startswithabang/2020/06/04/sorry-astronomers-practically-all-of-the-universes-matter-is-still-missing/#4c22e6393942

"It opens up a whole new universe": Revolutionary microscopy technique sees individual atoms for first time
https://www.nature.com/articles/d41586-020-01658-1

COVID-19 Projections
https://covid19.healthdata.org/projections?sfns=mo

Neil Ferguson on Covid
https://twitter.com/neil_ferguson/status/1243294815200124928

The Environment and Disease: Association or Causation?
https://fermatslibrary.com/s/the-environment-and-disease-association-or-causation

Solution: "Is It Turtles All the Way Down?"
https://www.quantamagazine.org/puzzle-solution-is-it-turtles-all-the-way-down-20200327/

Milky Way Dark Matter Signals in Doubt after Controversial New Papers
https://www.scientificamerican.com/article/milky-way-dark-matter-signals-in-doubt-after-controversial-new-papers/

Nos leemos!

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

Por ajlopez, en: Ciencia

Publicado el 20 de Junio, 2020, 12:22

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Aniversario de Alan Turing
https://www.microsiervos.com/archivo/ordenadores/aniversario-de-alan-turing.html

Why Gravity Is Not Like the Other Forces
https://www.quantamagazine.org/why-gravity-is-not-like-the-other-forces-20200615/

Beth nació en 1941 en Brooklyn. Tres meses antes de la fecha prevista. La única opción sería llevarla al Luna Park.
https://twitter.com/ValeArvejita/status/1273401243898195968

The Trouble with Counting Aliens
https://www.wired.com/story/the-trouble-with-counting-aliens/

How to Breed a Pomsky and Other Questions About Dogs and Sex
https://www.quantamagazine.org/how-to-breed-a-pomsky-and-other-questions-about-dogs-and-sex-20200618/

Literature Search, Inspire, Most Cited
https://inspirehep.net/literature?sort=mostcited&size=25&page=1&q=topcite%201000%2B

A Model of Leptons
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.19.1264

The Large N Limit of Superconformal Field Theories and Supergravity
https://arxiv.org/abs/hep-th/9711200

Nos leemos!

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

Por ajlopez, en: Ciencia

Publicado el 15 de Junio, 2020, 11:14

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Is the alien chunk Oumuamua actually a hydrogen iceberg?
https://www.syfy.com/syfywire/is-the-alien-chunk-oumuamua-actually-a-hydrogen-iceberg

If A and B are observables AB is not, but it's made of i(AB-BA) and AB+BA
https://twitter.com/johncarlosbaez/status/1268571813170176000

Quantum Journal
https://quantum-journal.org/

A Surprise Discovery Points to the Source of Fast Radio Bursts
https://www.quantamagazine.org/a-surprise-discovery-shows-magnetars-create-fast-radio-bursts-20200611/

Graph-theoretic Simplification of Quantum Circuits with the ZX-calculus
https://quantum-journal.org/papers/q-2020-06-04-279/

La tabla periódica que conoces no es la única que existe
https://www.larazon.es/ciencia/20200605/buwlukrmhnb5nlsh22ojzohsqy.html

What Came Before the Big Bang?
https://www.discovermagazine.com/the-sciences/what-came-before-the-big-bang

Nuevos resultados que apoyan la conjetura AdS/CFT de Maldacena
https://francis.naukas.com/2020/06/07/nuevos-resultados-que-apoyan-la-conjetura-ads-cft-de-maldacena/

Nos leemos!

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

Por ajlopez, en: Ciencia

Publicado el 14 de Junio, 2020, 14:10

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We’ve been building a new tool called Penrose, which takes a big step toward automatically visualizing mathematics.
https://twitter.com/hypotext/status/1268218080993386497
https://penrose.ink/siggraph20.html

Medieval maths! This table was written around 1110 at Thorney Abbey, Cambridgeshire. It helps you multiply fractions from 1/8 to 1/2304, by integers from 1 to 10000.
https://twitter.com/Seb_Falk/status/1270999728663277569

Ranks of Elliptic Curves
https://math.berkeley.edu/~molsson/KConrad-ranks.pdf

In Mathematics, It Often Takes a Good Map to Find Answers
https://www.quantamagazine.org/in-math-it-often-takes-a-good-map-to-find-answers-20200601/

In a Single Measure, Invariants Capture the Essence of Math Objects
https://www.quantamagazine.org/math-invariants-helped-lisa-piccirillo-solve-conway-knot-problem-20200602/

The ‘Useless’ Perspective That Transformed Mathematics
https://www.quantamagazine.org/the-useless-perspective-that-transformed-mathematics-20200609/

Topological Logic - a rod through one hole of a double torus can pass through both with some careful stretching of the surface.
https://twitter.com/mathemaniac/status/1270680150506496003

How can you add something with period 6 and something with period 20 to create something with 7-fold symmetry?
https://twitter.com/AlgebraFact/status/1271037088180383745

Nos leemos!

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

Publicado el 13 de Junio, 2020, 12:29

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Carmichael's Totient Function Conjecture
https://twitter.com/AlgebraFact/status/1264233391433625601
https://mathworld.wolfram.com/CarmichaelsTotientFunctionConjecture.html

For those who are interested in research-based solutions to stop police violence, here"s what you need to know - based on the facts and data.
https://twitter.com/samswey/status/1180655701271732224

Dot, cross, and quaternion products
https://www.johndcook.com/blog/2012/02/15/dot-cross-and-quaternion-products/

Let R be an integral domain. Then R is a field iff every finitely generated R-module is free.
https://twitter.com/AlgebraFact/status/1267834641614098433

Lenses from a Haskell Perspective
https://twitter.com/_julesh_/status/1268170429262434305

Profunctor optics, a categorical update
https://arxiv.org/abs/2001.07488

What You Needa Know about Yoneda
https://www.cs.ox.ac.uk/jeremy.gibbons/publications/proyo.pdf

Categories of Optics
https://arxiv.org/abs/1809.00738

Nos leemos!

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

Publicado el 7 de Junio, 2020, 20:07

Sigue acá la cuarentena en Buenos Aires. Revisión de las resoluciones del mes anterior:

- Escribir sobre Matemáticas [completo] ver post
- Escribir sobre Física [pendiente]
- Escribir sobre Historia de las Matemáticas [pendiente]
- Escribir sobre Historia de la Ciencia [completo] ver post
- Estudiar blues en guitarra [completo]

Mis 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

Esta vez agrego algunos OKR (Objective and Key Results), para ir cumpliendo en el trimester Junio, Julio, Agosto:

Objetivo: Aprender y compartir matemáticas
Resultado clave: Escribir tres artículos sobre ecuaciones elípticas
Resultado clave: Escribir seis artículos sobre teoría de números

Objetivo: Aprender y compartir física
Resultado clave: Escribir tres artículos de física cuántica
Resultado clave: Escribir tres artículos de física clásica

Nos leemos!

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

Publicado el 6 de Junio, 2020, 15:27

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My Quantum Experiment
https://blogs.scientificamerican.com/cross-check/my-quantum-experiment/

Why Sleep Deprivation Kills
https://www.quantamagazine.org/why-sleep-deprivation-kills-20200604/

A Digital Locksmith Has Decoded Biology"s Molecular Keys
https://www.quantamagazine.org/new-machine-learning-system-decodes-how-proteins-interact-20200603/

An Idea From Physics Helps AI See in Higher Dimensions
https://www.quantamagazine.org/an-idea-from-physics-helps-ai-see-in-higher-dimensions-20200109/

The Coronavirus Explained & What You Should Do
https://www.youtube.com/watch?v=BtN-goy9VOY

Yuval Noah Harari: the world after coronavirus | Free to read
https://amp.ft.com/content/19d90308-6858-11ea-a3c9-1fe6fedcca75

Spacetime tells matter how to move; matter tells spacetime how to curve
https://twitter.com/Rainmaker1973/status/1268830142308265984

El problema de los bariones perdidos
https://www.ivoox.com/aparici-orbita-s02e36-el-problema-los-audios-mp3_rf_51789186_1.html

Nos leemos!

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

Por ajlopez, en: Ciencia

Publicado el 31 de Mayo, 2020, 18:00

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Coronavirus and Flu
https://www.nytimes.com/2020/02/29/health/coronavirus-flu.html

Spreading the Word on a Possible Alzheimer’s Treatment
https://www.quantamagazine.org/stimulated-brain-waves-offer-a-possible-treatment-for-alzheimers-20200527/

Black Hole Paradoxes Reveal a Fundamental Link Between Energy and Order
https://www.quantamagazine.org/black-hole-paradoxes-reveal-a-fundamental-link-between-energy-and-order-20200528/

Proxima Centauri Exoplanet
https://twitter.com/johncarlosbaez/status/1266428654721961984

Integrated Information in Process Theories
https://arxiv.org/abs/2002.07654

Particle Quiz
https://scoollab.web.cern.ch/sites/scoollab.web.cern.ch/files/ParticleGame/

How to Desing a Perpetual Energy Machine
https://www.quantamagazine.org/how-to-design-a-perpetual-energy-machine-20200401/

Epidemic Modeling 101: Or why your CoVID-19 exponential fits are wrong
https://medium.com/data-for-science/epidemic-modeling-101-or-why-your-covid19-exponential-fits-are-wrong-97aa50c55f8

Nos leemos!

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

Por ajlopez, en: Ciencia

Publicado el 30 de Mayo, 2020, 13:18

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Triángulo y Circunferencia Circunscrita
https://www.gaussianos.com/triangulo-y-circunferencia-circunscrita/

Mathematician Measures the Repulsive Force Within Polynomials
https://www.quantamagazine.org/new-math-measures-the-repulsive-force-within-polynomials-20200514/

Isbell duality
https://twitter.com/johncarlosbaez/status/1266029338190680064

Put coplay / lens update into a state monad where the state variable is a payoff vector
https://twitter.com/_julesh_/status/1251507999606276104

Kurt Gödel Wanted to Revise Our Concept of Time
https://www.thegreatcoursesdaily.com/kurt-godel-wanted-to-revise-our-concept-of-time/

Highly composite numbers
http://wwwhomes.uni-bielefeld.de/achim/highly.html

Symbolic Mathematics Finally Yields to Neural Networks
https://www.quantamagazine.org/symbolic-mathematics-finally-yields-to-neural-networks-20200520/

Graduate Student Solves Decades-Old Conway Knot Problem
https://www.quantamagazine.org/graduate-student-solves-decades-old-conway-knot-problem-20200519/

Nos leemos!

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

Publicado el 25 de Mayo, 2020, 15:07

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Los conceptos de campo, partícula, partícula virtual y vacío
https://francis.naukas.com/2012/08/15/los-conceptos-de-campo-particula-particula-virtual-y-vacio/

Así inactivan el coronavirus los productos de limpieza
https://www.lasexta.com/el-muro/deborah-garcia/asi-inactivan-coronavirus-productos-limpieza_202003185e71f764cf7ab300010f99cc.html

What Other Coronaviruses Tell Us About SARS-CoV-2
https://www.quantamagazine.org/what-can-other-coronaviruses-tell-us-about-sars-cov-2-20200429/

Study: Could dark matter be hiding in existing data?
https://phys.org/news/2020-05-dark.html

Physicists have just seen "Pauli crystals"
https://twitter.com/johncarlosbaez/status/1263128844850081792

The Great Debate of Shapley and Curtis — 100 years later
https://astronomy.com/news/2020/04/the-great-debate-of-shapley-and-curtis--100-years-later

Physicists identify unique signature to confirm quark-gluon plasma in Universe
https://arstechnica.com/science/2020/05/physicists-identify-unique-signature-to-confirm-quark-gluon-plasma-in-universe/

Sugary Camouflage on Coronavirus Offers Vaccine Clues
https://www.quantamagazine.org/sugars-on-coronavirus-spike-protein-offer-vaccine-clues-20200505/

Nos leemos!

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

Por ajlopez, en: Ciencia

Publicado el 24 de Mayo, 2020, 11:44

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The role of voting intention in public opinion polarization
https://arxiv.org/abs/1909.07092

Mirth programming language
https://twitter.com/typeswitch/status/1249368983729471488
https://github.com/mirth-lang/mirth

Rule 110
https://en.wikipedia.org/wiki/Rule_110

The Computer Scientist Who Can"t Stop Telling Stories
https://www.quantamagazine.org/computer-scientist-donald-knuth-cant-stop-telling-stories-20200416/

Bourbaki's final perfected definition of the number 1, printed out on paper, would be 200,000 as massive as the Milky Way!
https://twitter.com/johncarlosbaez/status/1250868989414137857

Math3ma
https://www.math3ma.com/

The Mathematics of Privacy
https://becominghuman.ai/the-mathematics-of-privacy-361742827f08

Reflections on monadic lenses
http://www.cs.ox.ac.uk/jeremy.gibbons/publications/mlenses.pdf

Nos leemos!

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

Publicado el 23 de Mayo, 2020, 12:28

En estos días vuelvo a leer a Max Jammer, a quien mencioné en:

Uhlenbeck, Goudsmit y el spin del electron
Max Jammer y el Formalismo de la Mecánica Cuántica

Estoy leyendo su excelente libro "The Conceptual Development of Quantum Mechanics", edición 1966. Leo:

It is the purpose of this study to trace the conceptual development of  quantum mechanics from its inception to its formulation as a full-fledged theory of atomic physics, from its status as a rather doubtful ad hoc hypothesis to that of an imposing intellectual structure of great beauty.

Trata de la mecánica cuántica no relativista de una cantidad finite de grados de libertad, que abarca los primeros desarrollos exitoso, digamos, hasta parte de la tercera década del siglo XX. Las primeras preguntas que nos aparecen son: ¿qué es el desarrollo conceptual? ¿es necesario en este tema?.

All the great theories in the history of physics—from Aristotelian mechanics and its medieval elaborations, through Newtonian dynamics with its Lagrangian or Hamiltonian modifications, to Maxwellian  electrodynamics and* Einsteinian relativity—have been subjected repeatedly to historico-critical investigations, and their conceptual foundations have been thoroughly analyzed. But no comprehensive scholarly study of the conceptual development of quantum mechanics has heretofore appeared. The popular or semiscientific publications available hardly skim the surface of the subject. And the few, though important, essays on the topic written by the originators of the theory themselves are mostly confined to a  particular aspect or to the defense of a specific philosophical position. The publication of a comprehensive and coherent analysis of the conceptual development of quantum mechanics, the only consistent theory of atomic processes, and hence a foundation of modern science, seems therefore to fill an important lacuna in the literature on the history and philosophy of physics.

Primero, es un libro sobre el desarrollo de las ideas. No es un libro de texto para APRENDER mecánica cuántica, sino para entender cómo se fue desarrollando. Por otro lado, no es un libro solamente con el desarrollo histórico: habrá ocasiones donde Jammer se concentra en el desarrollo de una idea, sin importar que ese desarrollo se superponga en años históricos con otro desarrollo de otra idea.

Such a study, however, should not be regarded as an end in itself. Never before has a theory been treated in so many excellent texts within so short a period of time. Since every additional text, as is natural in a developing branch of science, attempts to construct the theory on the basis of an ever more concise logical structure, the traditional texts presenting the material in the order of its historical development are gradually losing ground. Students, it is rightfully claimed, may be saved much trouble "if they are not led through all the historical pitfalls, and instead acquainted from the very beginning with concepts, such as the spin, that cannot be grasped except by quantum mechanical means." [cita 1] Admittedly, a good working knowledge, even a high standard of efficiency and competence in applying the theory to physical problems may be obtained by this method of instruction. But as long as it is true that "however far the phenomena transcend the scope of classical physical explanation, the account of all evidence must be expressed in classical terms," [cita 2] a profound comprehension of quantum mechanics requires more than a study of the subject in its shortest possible logical formulation. "It is impossible to understand the methods of modern quantum mechanics without a knowledge of the way in which the theory has been developing." [cita 3] Indeed, some knowledge of the dramatic struggle of ideas that preceded the formation of quantum  conceptions and of the intricate ways of reasoning that led to the generally accepted formulation of the theory is indispensable for a profound comprehension of its physical significance, for an intelligent appreciation of its philosophical implications, and even for an enlightened understanding of its logical structure. Duhem's statement "faire l'histoire d'un principe physique, c'est en meme temps en faire l'analyse logique" is particularly meaningful for the science of quantum mechanics.

Hoy aprendemos física clásica, digamos la mecánica newtoniana, sin estudiar ni su desarrollo histórico ni conceptual (¿cómo surgió el concepto de energía? ¿y el de momento angular?). Pero en cuántica, y en especial en mecánica cuántica, pasa que si bien se puede aprenderla sin necesitar de la historia o el desarrollo, sus conceptos, operaciones y formalismos son tan extraños a la intuición que para realmente comprenderla, atraparla en su esencia, puede que no haya otro camino que el emprendido por Jammer: el desarrollo de las ideas, para explicar fenómenos que no cuajan en el marco "clásico". Es cierto que hay muy buenos libros para comenzar a entender la mecánica cuántica (y luego la física cuántica) desde algunos principios, sin tener que seguir todo el desarrollo ni histórico ni conceptual. Pero es como que se pierde algo. Un excelente libro que recuerdo ahora, que sigue un desarrollo histórico, más que conceptual, es el Física Cuántica, de Eisberg y Resnick, que era un clásico en mis días de estudiante universitario.

La cita 1 es F.A.Kaempffer, Concepts in Quantum Mechanics. La cita 2 es de Niels Bohr, "Discussion with Einstein on epistemological problems in atomic physics". La cita 3 es A.March, Quantum Mechanics of Particles and Wave Fields.

Seguiré citando y comentando algunos temas de este libro. Es interesante, por ejemplo, cómo plantea que los desarrollos de Jordan y de Dirac, a partir de 1925, son como un contrapunto: mientras el primero se concentra en teorías de campo, el segundo prefirió una vision desde el modelo de partículas.

Nos leemos!

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

Por ajlopez, en: Ciencia

Publicado el 17 de Mayo, 2020, 10:02

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MIP*=RE
https://arxiv.org/abs/2001.04383

A simulation of sunflower growth
https://twitter.com/ZenoRogue/status/1247900522905886723

To Win This Numbers Game, Learn to Avoid Math Patterns
https://www.quantamagazine.org/to-win-this-numbers-game-learn-to-avoid-math-patterns-20200507/

In Star Trek Discovery we heard about the "Logic Extremists"
https://twitter.com/johncarlosbaez/status/1258475087704895488

What does "birational equivalence" mean in a cryptographic context?
https://crypto.stackexchange.com/questions/43013/what-does-birational-equivalence-mean-in-a-cryptographic-context

If you view any ellipse from just the right distance, it will *always* occupy 90 degrees
https://twitter.com/gregeganSF/status/1243318369983418368

Here"s the axioms for a group in strings
https://twitter.com/CreeepyJoe/status/1248736658612031488

Modeling Opinion Dynamics: Theoretical analysis and continuous approximation
https://arxiv.org/abs/1606.00662

Nos leemos!

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

Publicado el 10 de Mayo, 2020, 13:21

Por estos lares seguimos en cuarentena. Mucho trabajo y estudio, pero pudo escribir poco. Repaso de las resoluciones del mes pasado:

- 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]

Tengo que poner voluntad para pasar por escrito lo que estuve aprendiendo de matemáticas y física. Así que sigo insistiendo con estas resoluciones para mayo:

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

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

Publicado el 3 de Mayo, 2020, 14:36

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Interface Scaling in the Contact Process
https://arxiv.org/pdf/cond-mat/0003480.pdf

Radical Solutions: Evariste Galois
https://www.damninteresting.com/radical-solutions/

Explicación de teoría de colas y ejercicio resuelto
https://www.youtube.com/watch?v=t3x2KinUqAA&feature=emb_logo

Mathematical proof that rocked number theory will be published
https://www.nature.com/articles/d41586-020-00998-2

Conmutative Semigroups
https://twitter.com/johncarlosbaez/status/1246470112321953792

Quantum Natural Language Processing
https://medium.com/cambridge-quantum-computing/quantum-natural-language-processing-748d6f27b31d
https://github.com/oxford-quantum-group/discopy/blob/ab2b356bd3cad1dfb55ca6606d6c4b4181fe590c/notebooks/qnlp-experiment.ipynb

Graced With Knowledge, Mathematicians Seek to Understand
https://www.quantamagazine.org/mathematicians-grapple-with-sudden-answer-to-connes-embedding-conjecture-20200408/

Landmark Computer Science Proof Cascades Through Physics and Math
https://www.quantamagazine.org/landmark-computer-science-proof-cascades-through-physics-and-math-20200304/

Nos leemos!

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

Publicado el 2 de Mayo, 2020, 17:55

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Conway"s Impact on the Theory of Random Tilings
https://twitter.com/JimPropp/status/1249189041343475712

Ha muerto John Horton Conway (1937-2020) - Gaussianos
https://www.gaussianos.com/ha-muerto-john-horton-conway-1937-2020/

Math After COVID-19
https://www.quantamagazine.org/how-has-coronavirus-affected-mathematics-20200428/

Method of estimating the number of infected people
https://twitter.com/wtgowers/status/1242823142088851456

Tikzcd Editor Category Diagrams
https://tikzcd.yichuanshen.de/

Uncomputable Numbers
https://medium.com/cantors-paradise/uncomputable-numbers-ee528830d295

The Quasi-Stationary Distribution of the Subcritical Contact Process
https://twitter.com/pgroisma/status/1242941761057632257
https://arxiv.org/pdf/1908.04175.pdf

Simulation of quasi-stationary distributions on countable spaces
https://arxiv.org/abs/1206.6712

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

Publicado el 25 de Abril, 2020, 16:42

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James Propp "Conway's Impact on the Theory of Random Tilings" 03 23 14
https://www.youtube.com/watch?v=e_729Ehb4vQ&feature=emb_logo

Haskell implementation of open games
https://github.com/jules-hedges/open-games-hs

Gambit: Software Tools for Game Theory
http://gambit-project.org/

The category-theoretic formulation of 1
https://twitter.com/andrejbauer/status/1253357470250123265

Linear Algebra Course
https://ocw.mit.edu/courses/mathematics/18-06sc-linear-algebra-fall-2011/

Important Formulas(Part 7) - Permutation and Combination
https://www.careerbless.com/aptitude/qa/permutations_combinations_imp7.php

Dr. Mary Cartwright, 1900-1998
https://twitter.com/GWOMaths/status/1196367452394938374

Tiling with polyominoes and combinatorial group theory
https://www.sciencedirect.com/science/article/pii/0097316590900574

Nos leemos!

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

Publicado el 21 de Abril, 2020, 20:39

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John Horton Conway has died
https://twitter.com/CardColm/status/1249038195880341505

John H. Conway, 1937–2020
https://www.math.princeton.edu/news/john-h-conway-1937-2020

Predicting the number of reported and unreported cases for the COVID-19 epidemics in China, South Korea, Italy, France, Germany and United Kingdom
https://www.medrxiv.org/content/10.1101/2020.04.09.20058974v1

My PhD thesis "At the Interface of Algebra and Statistics" is now on the arXiv
https://twitter.com/math3ma/status/1249862830670729217
https://arxiv.org/abs/2004.05631
https://www.youtube.com/watch?v=wiadG3ywJIs&feature=youtu.be

John Conway Solved Mathematical Problems With His Bare Hands
https://www.quantamagazine.org/john-conway-solved-mathematical-problems-with-his-bare-hands-20200420/

Compositional game theory
https://arxiv.org/abs/1603.04641v3

Recomendando películas matemáticas
https://twitter.com/edusadeci/status/1242397128120578049

Determining the length of paper on a toilet paper roll
https://twitter.com/fermatslibrary/status/1242811233637666818

Nos leemos!

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