Blackboard

Borromean Rings

Knot theory weirdness

The diffeomorphism group of the circle deformation retracts to the orthogonal group O(2)

Nasty integrals

Nasty integrals continued

The blackboard in my office. Most of what you see are bits of the proof of the Four Vertex Theorem, though there are some scraps of knot theory in the background.

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anagneia80 says:

Hey, you are welcome to add your photo to this group gallery: www.flickr.com/groups/kreative-tafeln/
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Taken in University City, Philadelphia (map)
Taken with a Canon PowerShot A70.
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Taken on September 19, 2005
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Blackboard

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anagneia80 says:

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shonk's photostream

Kreative Tafeln (Creative blackboards) (Pool)

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