Office Camera

There is a webcam in my office that I use to take photos of the blackboard. This setup was inspired by Dror Bar Natan’s Blackboard Shots. You can read more about the setup here. If you know of anyone else with a similar setup, please let me know.

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A29: S4.2 Q125 A Hard Optimization with Absolute Values.

A photo of a whiteboard titled: A29: S4.2 Q125 A Hard Optimization with Absolute Values.

Nested closed intervals and infs and sups.

A photo of a whiteboard titled: Nested closed intervals and infs and sups.

Why countable unions in sigma-algebras?

A photo of a whiteboard titled: Why countable unions in sigma-algebras?

Critical points of piecewise functions.

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Ck Classes

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Boolean Lattices

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Limsup from Reals to Sets

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limsup of Sets and Sequences

A photo of a whiteboard titled: limsup of Sets and Sequences

Braid Conventions

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Groups via Generators and Relations

A photo of a whiteboard titled: Groups via Generators and Relations

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