Mathblogging.org Weekly Picks

We try to read every blog post that goes through Mathblogging.org. For the Weekly Picks, we collect posts in one category from last week to give you an impression of what the mathematical blogosphere has to offer. (Read this for more information on this change.)

Last week, we focused on “Applied” blogs.

Reviews, Exposition, etc.

• At Azimuth, John Baez wants you to fall in love with the Coxeter group of the cube.
• Learn&Teach Statistics and Operations Research explains statistical significance with a short post and video.

Community

• The discussion following a guest post at Xi’an’s Og in defense of refereeing produced a proper preprint — it’s so good that it has already been rejected once!
• Mathbabe wonders what data science PhDs are worth when they can’t access the data from private companies.
• At Algorithms, game theory, social choice [...] etc, Haris Aziz gives a shout out to his co-author winning “best presentation by a young scientist” at the Matching Markets Conference.

Research

• Regularize can stop being bothered by three problems in complexity — RIP & NSP are NP-hard and homotopy for l1 has exponential growth.
• Nathaniel Johnston shares some notes on norms and dual norms in finite dimensional Hilbert spaces.

Enjoy!

Mathblogging.org Weekly Picks

We try to read every blog post that goes through Mathblogging.org. For the Weekly Picks, we collect posts in one category from last week to give you an impression of what the mathematical blogosphere has to offer. (Read this for more information on this change.)

Last week, we focused on ”General“, ”Journalism“, and “Institutions“.

Exposition

• At M-Phi, Catarina Dutilh Novaes discusses a Kantian relic — “logic as umpire”.
• Math Munch has a great week with fractals, kitting and 3-d design.

Institutions

• At Images des mathématiques (translation), Aurélien Alvarez reports from the French national conference on primary and secondary math education.

Journalism

• Mariano Tomatis investigates the fatal number 27.
• At Simple City, Richard Elwes ponders the statistics for ranking Cricket players.
• At NewScientist, Jacob Aron reports on a recent paper on a space-filling problem real-world applications.

Enjoy!

Mathblogging.org Weekly Picks

We try to read every blog post that goes through Mathblogging.org. For the Weekly Picks, we collect posts in one category from last week to give you an impression of what the mathematical blogosphere has to offer. (Read this for more information on this change.)

Last week, we focused on ”Pure Researchers“.

Research

• At Aleph Zero Categorical, Jason Polak gives Kaplansky’s proof that every projective module over a local ring is free.
• At My Biased Coin, guest blogger Justin Thaler explains a recent paper he co-authored on attribute-efficient learning.
• At Combinatorics and more, Gil Kalai lets you catch up before the debate on Quantum Fault-Tolerance Debate continues.

Community

• At The Accidental Mathematician, Izabella Laba continues her series on teaching loads.
• At Computational Complexity, Lance Fortnow observes how CS conference have becom a pay-to-publish venue.
• At Piece of Mind, Nassif Ghoussoub shares more bad news on the bleed-out of NSERC’s Discovery Program.
• At Mathlog, Thilo Kuessner links to three videos by the Humboldt Foundation portraying Weiss, Kreimer and Levine.

Exposition

• At Area 777, Conan Wu shares some notes on a talk by Terry Tao on the 3-dim Hilbert-Smith conjecture.
• Gaussianos (translation) explains how Fermat’s Last Theorem escaped the clutches of Lame.
• Out of the Norm introduces you to the wonderful Schreier sets with a surprise connection to Fibonacci numbers.

Enjoy!

Mathblogging.org Weekly Picks

We try to read every blog post that goes through Mathblogging.org. For the Weekly Picks, we collect posts in one or more categories from last week to give you an impression of what the mathematical blogosphere has to offer. (Read this for more information on this change.)

Last week, we focused on ”Art“, ”Visual” and ”Fun“.

Popular mathematics

• At The Aperiodical, Katie Steckles and Christian Perfect grow their own delicious self-reproducing foods.
• On youtube, Art of the Problem explains perfect secrecy and pseudo-randomness.

Visualizations

• The Math Kid illustrates the Euler spiral with an orange.

Art

• At Intersections, JoAnne Growney shares a minimal poem by Aram Saroyan.
• You Got Your Art In My Maths sends you over to look at The Crypthographer.
• Impossible World cross-posts Sassydeb’s Escher Tree.

Enjoy!

Mathblogging.org Weekly Picks

We try to read every blog post that goes through Mathblogging.org. For the Weekly Picks, we collect posts in one category from last week to give you an impression of what the mathematical blogosphere has to offer. (Read this for more information on this change.)

Last week, we focused on “Education“.

Research, methodology, etc.

• Think, Thank, Thunk has some fantastic notes&quotes about competency based education.
• Doing Mathematics is trying to sort out constructivist vs discovery-based learning.
• At Maximing Learning,  Amber Caldwell explains how standards based grading helps her with high stakes testing at  the end of the year.
• Max Ray shares two comparative lesson designs, one for discovery and one for rehearsing.

Projects, lessons, etc.

• Mathematics for Teaching shares a Geogebra applet to explore the house of quadrilaterals.
• Math Mama writes… did a unit on Eigen-stuff.
• Math Hombre takes a multiplication game from MathForLove and turns it into a game design unit.
• Pat’s Blog extracts some observations on Pythagorean triples from a 1923 paper.

Community

• regularize shares the experience of a job interview for professorial positions in Germany.
• On the Albany Math Circle blog, Mary O’Keefe shares her impressions from the Julia Robinson Math Fest.

Art, Fun etc.

• Mr Honner shares a beautiful math photo.
• la covacha mathematica (translation) gives you the classsic: how many mathematicians do you need to change a lightbulb?
• Epsilon-Delta overheard it in mathlab.

Enjoy!

Mathblogging.org Weekly Picks

We try to read every blog post that goes through Mathblogging.org. For the Weekly Picks, we collect posts in one category from last week to give you an impression of what the mathematical blogosphere has to offer. (Read this for more information on this change.)

Last week, we focused on “Applied” blogs.

Research

• At the Geomblog, Suresh Venkatasubramanian explains new ways to minimize communication for distributed computations.
• At OR in an OB world, Paul Rubin explains how to find K best solutions to an optimization.

Reviews, Exposition, etc.

• Math Encounters Blog deconstructs the dispersion formula for optical fiber.
• At Nuit Blanche, Igor Carron lets the invisible Mercedes disappear and detect its appearance.

Community

• At Statistical Modeling, Causal Inference and Social Science, Andrew Gelman shared his (contradicting) views on two + two proposals  for alternative peer review systems.

Enjoy!

Mathblogging.org Weekly Picks

We try to read every blog post that goes through Mathblogging.org. For the Weekly Picks, we collect posts in one category from last week to give you an impression of what the mathematical blogosphere has to offer. (Read this for more information on this change.)

Last week, we focused on ”General“, ”Journalism“, and “Institutions“.

Exposition

• Girls’ Angle Blog answers a reader’s question on the ubiquitous Obviousness.
• The Institute for Mathematics and Computer Science gives you a primer on computational thinking for kids.
• Images des Mathématiques (translation) offers an introduction to biological networks.

History

• The Renaissance Mathematicus reacts to a revisionist historian at the Scientific American Guest Blog.

Journalism

• The New APPS blog pointed you to two pieces in the Guardian — one on racism in Mathematics and another one on the ‘academic Spring’.
• bit-player, as promised in its column in the American Scientist, released a javascript implementation the 1972 doomsday model World3, including a lot of background writing.

Enjoy!

Mathblogging.org Weekly Picks

We try to read every blog post that goes through Mathblogging.org. For the Weekly Picks, we collect posts in one category from last week to give you an impression of what the mathematical blogosphere has to offer. (Read this for more information on this change.)

Last week, we focused on ”Pure Researchers“.

Exposition

• Calculus VII explains the intrinsic diameter.
• Mathematik, Bücher und Meer (translation) studied the complicated way of calculating the date of Easter.
• Transitive Action muses on transparency in mathematics using a simple lemma.
• Gli Studenti Oggi (translation) teaches students about incredible size.

Research

• At Azimuth, John Baez links to his robot-supported talk on environmental issues at Google.
• Out of the Norm explains Gowers’ hyperplane space using Jenga.
• Quomodocumque reflects on probalitities of probabilities.
• Gödel’s Lost Letter and P=NP wonders if protein folding couldn’t be solved with inspiration from lazy evaluation.

Community

• Episodic Thoughts discusses prizes for young mathematicians and calls for a Galois prize.
• Piece of Mind reports the latest innovation at BIRS: live streaming and recording of all talks.
• The Secret Blogging Seminar discusses an upcoming piece in the Notices of the AMS regarding the Elsevier boycott.
• James Colliander analyzes the NSERC discovery grant results for Toronto.

Enjoy!

Mathblogging.org Weekly Picks

We try to read every blog post that goes through Mathblogging.org. For the Weekly Picks, we collect posts in one category from last week to give you an impression of what the mathematical blogosphere has to offer. (Read this for more information on this change.)

Last week, we focused on ”Art“, ”Visual” and ”Fun“.

Art

• Vi Hart gives you 9.999… reasons that .999… = 1 only to to show later that every proof is wrong (or does she ).
• Intersections — Poetry with Mathematics shares a poem celebrating Emmy Noether’s 130th birthday.
• Impossible World shares “Constructing the impossible” by Studio Tipi.

Visualizations

• The Math Kid visualizes the duality between the ℓ1 and ℓ∞ norms.
• IntoTheContinuum shares a colorful infinite spiral (including its mathematica code)

Humor

• (x,why?) gives you “Benford Tools”.
• Mathy Jokes 4 Mathy Folks had to fight a very mathematical parrot.
• Komplexify! suffers insult and injury.

Enjoy!

Mathblogging.org Weekly Picks

We try to read every blog post that goes through Mathblogging.org. For the Weekly Picks, we collect posts in one category from last week to give you an impression of what the mathematical blogosphere has to offer. (Read this for more information on this change.)

Last week, we focused on “Education“.

Research, methodology, etc.

• Mathy McMatherson thinks about the Jigsaw teaching technique.
• At dy/dan, Dan Meyer presents his latest project, 101qs.com (also check out his behind-the-scenes).

Projects, lessons, etc.

• Delta Scape writes about effective demonstration lessons.
• Lost in Recursion connected exponents, fractals and the scale of the universe.
• Math4Love shares a lesson on moving bishops on the torus.
• Math2.0 reported on the Noon Day Project.

Community

• MathsInsider visualizes the Secret Life of #mathchat.
• The Albany Area Math Circle Blog reflects on STEM bullies at udacity.
• Math Hombre shares his personal Geogebra Stars.
• Think Thank Thunk rants about open periods.

And any day is a good day for On This Day in Math.

Enjoy!