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May 3, 2020 at 9:23 vote accept Rupert
May 3, 2020 at 6:41 answer added Uri Bader timeline score: 4
May 2, 2020 at 19:33 answer added Nik Weaver timeline score: 2
May 2, 2020 at 14:50 comment added Uri Bader Thanks, @NikWeaver and YCor, for calling my attention and for your care. I intend to leave an answer later on and clarify some things related to the question. Unfortunately I am unable to do it right now. In the meantime, anyone (Nik?) who wishes to answer the actual question asked, namely what does the term "von-Neumann spectrum" stands for, you are most welcome to do so. In fact, I do not have any reference handy currently. The definition is probably in Takasaki I, but most likely without giving this specific terminology.
May 2, 2020 at 10:48 comment added Matthew Daws I think it would be a little sad to remove the question, if an answer could otherwise be given. I spent all of 3 minutes thinking about this yesterday, but couldn't see an answer. I'd be curious to see what an answer was! One of the useful things about MO is that if you have a question, often other people have the same question! I like just browsing questions, and answers, and learning things along the way.
May 2, 2020 at 9:01 comment added Rupert Uri has in fact indicated he is happy to have a Skype chat with me in the next few days, and it may well be that he can clarify things, so in that case I guess I can remove the question.
May 1, 2020 at 18:49 comment added YCor To put it differently, I would dislike a question that would be phrased as addressed to a specific user. In the question you link at, there is no way to guess reading the question that one of the authors is a MO user, and this also applies to this very question (even if the name is written down). Still, would find it unfortunate that anybody feels obliged to leave the answer to the author. And certainly it would make me uncomfortable that anybody refrains to answer any question because of my presence here.
May 1, 2020 at 18:43 comment added Nik Weaver @YCor I've answered a question about one of my papers on MO, here and it wasn't uncomfortable for me. It seems to me that Uri can give the definitive answer if he wants to ... if not, maybe he can let me know this privately?
May 1, 2020 at 18:37 comment added YCor @NikWeaver I mean answering here on MO; I'm happy with any kind of question on my papers or remarks (including errata as Uri recently did). Maybe "uncomfortable" is exaggerated, but MO is not a place for private communications, so it's good sign that another person is prone to answer.
May 1, 2020 at 18:25 comment added Nik Weaver @YCor really? If someone had a question about one of your papers you would be uncomfortable answering?
May 1, 2020 at 16:10 comment added YCor @NikWeaver I guess you should answer the question then (I'd be uncomfortable to answer a question explicitly about my own work)
May 1, 2020 at 14:51 comment added Nik Weaver I think I could answer this, but probably @UriBader.is the best person to answer.
May 1, 2020 at 14:06 history edited YCor CC BY-SA 4.0
retagged, removed unessential info from title, while changing "et al"
May 1, 2020 at 13:59 history asked Rupert CC BY-SA 4.0