The invariant subspace problem is still a problem

The invariant subspace problem is still a problem

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The invariant subspace problem is solved for Hilbert spaces?

The invariant subspace problem is solved for Hilbert spaces?

The Lesson of Grace in Teaching

The Lesson of Grace in Teaching

The random graph, 4

The random graph, 4.

Matrix identities as derivatives of determinant identities

Schur complement

via Matrix identities as derivatives of determinant identities.

An introduction to special relativity for a high school math circle

An introduction to special relativity for a high school math circle.

Readings for Math Teachers

Readings for Math Teachers.

Topics in random matrix theory

Topics in random matrix theory.

Multiple recurrence in quasirandom groups

Multiple recurrence in quasirandom groups.

Ethnomathematics… in the Classroom

Ethnomathematics… in the Classroom.

MOOCs and Hype Again

MOOCs and Hype Again.

TWO MOOC revolutions

Tweet via Keith Devlin ‏@profkeithdevlin
There is not one but TWO MOOC revolutions going on. My new post at http://mooctalk.org/

Coming up for air (and spouting off).

Careers advice in Mathematical Sciences

Careers advice in Mathematical Sciences.

The closed graph theorem in various categories

The closed graph theorem in various categories.

Spending symmetry

Spending symmetry.