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Questions that are about research in mathematics, or about the job of a research mathematician, without being mathematical problems or statements in the strictest sense. Do not use this tag for easy or supposedly easy mathematical questions.

5 votes

Where to publish a math textbook in Creative Commons

You might try contacting Lon Mitchell at Virginia Commonwealth University. VCU has published hardcover versions of two open source textbooks (one on Linear Algebra, the other on Abstract Algebra), ea …
16 votes

Interesting mathematical documentaries

Marcus du Sautoy's The Story of Maths is a total of four hours attempting to give an overview of the history of mathematics from ancient to modern time, spending 5-10 minutes each on the life and work …
2 votes

Trichotomies in mathematics

There are three types of subgroups of $PGL_2(\mathbb{C})$ that act on $\mathbb{P}^1$ non-transitively but with finitely many orbits: (1) Type $T$: a one-dimensional torus (2) Type $N$: the normalize …
4 votes

Examples where adding complexity made a problem simpler

Much of modern algebraic geometry fits this paradigm. The introduction of schemes makes some things much more complicated -- non-uniqueness of the embedded components of the primary decomposition com …