Joys of correctly solving a 3-body problem

What it's like to have Tecs for an advisor.

Poincaré explains basic probability theory to a French shyster

Bill Thurston, RiP

I first met him in 1979, when he gave a talk on the proof of the Smith Conjecture somewhere on the Upper West Side. Man, oh man, was he a towering figure in those days (and for decades after that). Now melanoma got him. Here are some of his musings on mathematics.

Poincaré explains Einstein synchronisation--on December 11, 1900

Explication de texte.

How to invert a 2x2 matrix, the easy way

Rot fires another one to the Annals

.. dedicating his opus thusly: This essay is devoted to the meditation of God’s Word among the inhabitants of the earth.

A great acknowledgement

Androids and ghosts.

How spectral sequences started

... By a Frenchie guy in Stalag 17, who got sick of solving stoopid PDEs, and started looking at \CDs, instead. His main work in topology was carried out while he was in a prisoner of war camp in Edelbach, Austria from 1940 to 1945. He concealed his expertise on differential equations, fearing that its connections with applied mathematics could lead him to be asked to do war work. Leray's work of this period proved seminal to the development of spectral sequences and sheaves. These were subsequently developed by many others, each separately becoming an important tool in homological algebra. He returned to work on partial differential equations from about 1950.

Tecs stroking his white cat and cackling at Rot

Fair or not, he’s a lot like Sen. John Kerry in 2004, who was going nowhere until Howard Dean self-destructed.

Hyperbolic fashion

From the comments: I especially like the 6-dimensional Kahler manifold panties. Paris show.

\lesssimer's bio written apparently by a \CDer

Tecs hates estimates too

The diagram commutes!

An Iowahawk Diagram

Greedy search on a double bagel

Tecs the technology guy.

Venn diagrams explained

\CDs at fault, ultimately

Duh. Star student declared school illegal.
Roundup.

Pinko flatearthers shit their pants

More.
Tecs sells carbon credits like mad.

The big \CD meeting goes Nationwide