Tag Archives: cohomology

Groups with unique involution

I discussed the binary polyhedral groups in the second post on the ADE diagrams. A more general class of groups has cropped up a couple of times recently, namely finite groups containing a unique involution. I’d like to discuss them … Continue reading

Posted in exposition | Tagged , , , | Leave a comment

Ambiguity, 2

JoAnne Growney has recently referred again to our small disagreement about the role of ambiguity in mathematics and in poetry. The fact is that I really agree with her, but it is very hard to make a good argument for … Continue reading

Posted in mathematics and ... | Tagged , , , , , | 4 Comments