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Timeline for Upper-bounds for a vector equation

Current License: CC BY-SA 4.0

5 events
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May 30, 2019 at 13:06 vote accept livehhh
May 26, 2019 at 9:40 comment added Dominique Unruh Yes, the "$-$" got lost accidentally. I edited it now.
May 26, 2019 at 9:39 history edited Dominique Unruh CC BY-SA 4.0
added 1 character in body
May 26, 2019 at 9:38 comment added livehhh So, you mean that $B = -I$, right? I understand that there exists an example. Thank you.
May 26, 2019 at 9:08 history answered Dominique Unruh CC BY-SA 4.0