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• CommentRowNumber1.
• CommentAuthorUrs
• CommentTimeAug 5th 2013

added some very basic facts on $SU(2)$ here to special unitary group. Just so as to be able to link to them.

• CommentRowNumber2.
• CommentAuthorjim_stasheff
• CommentTimeAug 5th 2013
Is there a corresponding link for basic facts about SO(n) for small n?
• CommentRowNumber3.
• CommentAuthorUrs
• CommentTimeAug 5th 2013
• (edited Aug 5th 2013)

not yet, no. The entry special orthogonal group is still mostly a stub

• CommentRowNumber4.
• CommentAuthorjim_stasheff
• CommentTimeAug 5th 2013
I prepared a lecture on that topic here at Penn.
Should I e-mail to you for approval or guest post or???
• CommentRowNumber5.
• CommentAuthorUrs
• CommentTimeAug 5th 2013

Sure, if you have some pdf or the like, we can upload it to the nLab and announce it suitably. Just send me the file by email.

• CommentRowNumber6.
• CommentAuthorUrs
• CommentTimeAug 6th 2013

Okay, Jim has sent me his slides and I have uploaded them to special orthogonal group. They are here.