I’ve enjoyed your prior articles on category theory which have spurred me to delve deeper into the area. For others who are interested, I thought I’d also mention that physicist and information theorist John Carlos Baez at UCR has recently started an applied category theory online course which I suspect is a bit more accessible than most of the higher graduate level texts and courses currently out. For more details, I’d suggest starting here: https://johncarlosbaez.wordpress.com/2018/03/26/seven-sketches-in-compositionality/
Category: Mathematics
👓 Decades-Old Graph Problem Yields to Amateur Mathematician | Quanta Magazine
By making the first progress on the “chromatic number of the plane” problem in over 60 years, an anti-aging pundit has achieved mathematical immortality.
🔖 List of geometry topics
This is a list of geometry topics, by Wikipedia page.
One misconception of the general public is that geometry is the kind of geometry the Greeks studied and nothing else. That’s like asking an engineer if engineering has progressed past the wheel. Here is a list of the many kinds of geometries. https://t.co/4gjGsCVqkX
— math prof (@mathematicsprof) April 19, 2018
👓 Why We Use “X” as the Unknown in Math | Gizmodo
For hundreds of years, x has been the go-to symbol for the unknown quantity in mathematical equations. So who started this practice?
👓 Mathematicians Explore Mirror Link Between Two Geometric Worlds | Quanta Magazine
Decades after physicists happened upon a stunning mathematical coincidence, researchers are getting close to understanding the link between two seemingly unrelated geometric universes.
After having spent the last couple of months working through some of the “rigidity” (not the best descriptor in the article as it shows some inherent bias in my opinion) of algebraic geometry, now I’m feeling like symplectic geometry could be fun.
👓 Six ‘X-Rated’ Math Terms That Only Sound Dirty | Huffington Post
Cox-Zucker machine. What sounds like a high-tech device for oral sex is actually an algorithm used in the study of certain curves, including those that arise in cryptography. The story goes that David A. Cox co-authored a paper with fellow mathematician Steven Zucker, just so that the dirty-sounding term would enter the lexicon.

🔖 [1803.05316] Seven Sketches in Compositionality: An Invitation to Applied Category Theory
This book is an invitation to discover advanced topics in category theory through concrete, real-world examples. It aims to give a tour: a gentle, quick introduction to guide later exploration. The tour takes place over seven sketches, each pairing an evocative application, such as databases, electric circuits, or dynamical systems, with the exploration of a categorical structure, such as adjoint functors, enriched categories, or toposes. No prior knowledge of category theory is assumed. [.pdf]
👓 Applied Category Theory – Online Course | John Carlos Baez
👓 Robert P. Langlands Is Awarded the Abel Prize, a Top Math Honor | New York Times
👓 G. W. Peck | Wikipedia
G. W. Peck is a pseudonymous attribution used as the author or co-author of a number of published mathematics academic papers. Peck is sometimes humorously identified with George Wilbur Peck, a former governor of the US state of Wisconsin. Peck first appeared as the official author of a 1979 paper entitled "Maximum antichains of rectangular arrays". The name "G. W. Peck" is derived from the initials of the actual writers of this paper: Ronald Graham, Douglas West, George B. Purdy, Paul Erdős, Fan Chung, and Daniel Kleitman. The paper initially listed Peck's affiliation as Xanadu, but the editor of the journal objected, so Ron Graham gave him a job at Bell Labs. Since then, Peck's name has appeared on some sixteen publications, primarily as a pseudonym of Daniel Kleitman.
👓 Stephen Hawking, Who Examined the Universe and Explained Black Holes, Dies at 76 | The New York Times
A physicist and best-selling author, Dr. Hawking did not allow his physical limitations to hinder his quest to answer “the big question: Where did the universe come from?”
There's no need to go out tonight for a movie. There are 100s of math videos on every conceivable 'math' topic' at --> https://www.pinterest.com/mathematicsprof/
👓 Science’s Inference Problem: When Data Doesn’t Mean What We Think It Does | New York Times
Three new books on the challenge of drawing confident conclusions from an uncertain world.
This has some nice overview material for the general public on probability theory and science, but given the state of research, I’d even recommend this and some of the references to working scientists.
I remember bookmarking one of the texts back in November. This is a good reminder to circle back and read it.
Checkin UCLA Mathematical Sciences Building
👓 Flu Vaccines and the Math of Herd Immunity | Quanta Magazine
Simple math shows how widespread vaccination can disrupt the exponential spread of disease and prevent epidemics.