Dear anyone in PMATH 764: if you have notes for Monday and Wednesday of this week (i.e. March 26 and 28), handwritten or typed, your contribution of them would cause my pmath764notes.pdf to be 100% complete, and would therefore be greatly appreciated by not only myself, but also surely by a great many others. Please contact me at the email address provided on the About page. I will certainly credit you. Cheers.
EDIT: Thanks to two anonymous contributors (maybe now with two sets of the same notes, I may have a lone chance in hell of making heads or tails of this! ah, I kid). Next blog post is on exact sequences and their connections to (semi)direct products of groups and so on — this may or may not completely derail into a category theory post.