Hi Mike, I tried to save your site on https://archive.ph/. Their mission is to preserve webpages. Amazingly, though, while the page loads fine for me, archive is getting 404 from it! Universities tend to underpay their network engineers and end up with weird firewall policies. If anyone could simply save the whole web site, put it up on a private node for 30 min, and direct archive to it, archive will save it. I wouldn't think that the chairman not responding necessarily means that there is a policy about removing people's webpages. All network engineers were someone's students, just like our students often become someone's network engineers. After a while, when it becomes clear that the network is living its life out of anyone's control, the chairpeople give up trying to answer such questions. I try to remember what the mathematician said in the first Jurassic Park movie: "Nature will find the way." :) -- dusko On Mon, Oct 23, 2023 at 10:10 AM Michael Barr, Prof. > wrote: Partly, I am responding to this to train my mailer, but also some information. After Marta Bunge her web site disappeared. I wrote to our chairman a month ago asking if this was department policy and would mine disappear when I did. He has not bothered to respond so I guess I know the answer. The site is math.mcgill.ca/barr and it contains essentially all my published papers and books including the two with Charles. There is one new thing added: my original thesis, retyped. It is really mainly of historical interest. The main result is the direct construction of the shuffle idempotents in dimensions 2,3,4. Since a later paper found an inductive definition for all n, this is probably not interesting. Any idea why Mount Alison shut down the list? Computer storage is so cheap these days it hardly seems worth the effort. Michael You're receiving this message because you're a member of the Categories mailing list group from Macquarie University. To take part in this conversation, reply all to this message. View group files | Leave group | Learn more about Microsoft 365 Groups You're receiving this message because you're a member of the Categories mailing list group from Macquarie University. To take part in this conversation, reply all to this message. View group files | Leave group | Learn more about Microsoft 365 Groups