Timeline for How to prove the following the set are equal
Current License: CC BY-SA 4.0
15 events
| when toggle format | what | by | license | comment | |
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| Jun 23, 2021 at 13:56 | history | reopened |
Matthew Daws Yemon Choi András Bátkai Will Sawin Martin Sleziak |
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| Jun 22, 2021 at 11:46 | comment | added | Ailiy Evan | Thank you very much for your advices, then I will ask the author later. | |
| Jun 21, 2021 at 18:16 | comment | added | Will Sawin | I concur that you should simply ask the author about this, but disagree that this means that the question should be closed - questions asking how to justify a claim in a mathematical text where the question-asker fears they may have misread are relatively common on MO, and people are often able to guess what was meant in cases the text was unclear. | |
| Jun 21, 2021 at 8:07 | comment | added | Alex M. | @MatthewDaws: In my opinion, the correct thing to do for the OP would be to contact the author and ask for clarifications. It is obvious, even for 1st year of college, that the statement under discussion is wrong, so there is nothing more for us to say (we shouldn't try to guess what the author meant). | |
| Jun 20, 2021 at 21:17 | review | Reopen votes | |||
| Jun 23, 2021 at 13:51 | |||||
| Jun 20, 2021 at 19:02 | history | closed |
user44191 Jochen Wengenroth Ben McKay abx YCor |
Not suitable for this site | |
| Jun 20, 2021 at 16:40 | history | edited | Gabe Conant | CC BY-SA 4.0 |
edited body
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| Jun 20, 2021 at 16:40 | comment | added | Gabe Conant | I don't even see why $D$ needs to be open. If I'm understanding correctly, $x$ is in $L_{x,e}$ for any $e$, so if $x\in D$ then $L_{x,e}\cap D\neq\emptyset$ for any $e$. | |
| Jun 20, 2021 at 15:17 | comment | added | Matthew Daws | Could some of the close voters comment as to why? On the face of it, this seems an okay question (now improved due to edit): it is asking about a research paper which, indeed, does seem to contain an error. My understanding of the definition is that $D(x)$ is the entire unit sphere in $\mathbb R^n$, if $x\in D$, because $D$ is open. I guess if I knew more about the area, I could hazard a guess as to what was meant, but I don't. | |
| Jun 20, 2021 at 14:21 | comment | added | LSpice | Thanks to @MartinSleziak for editing in the text from the picture, and including the reference! @AiliyEvans, for future reference, that is the appropriate way to proceed if a significant part of a post can only be understood from reference to an image. | |
| Jun 20, 2021 at 14:18 | history | edited | Martin Sleziak | CC BY-SA 4.0 |
retyped the text from the picture
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| Jun 19, 2021 at 11:17 | comment | added | Ailiy Evan | this article is "On Fully Mixed and Multidimensional Extensions of the Caputo and Riemann-Liouville Derivatives, Related Markov Processes and Fractional Differential Equations" On page 1049. | |
| Jun 18, 2021 at 19:37 | comment | added | Matthew Daws | Could you say where the quoted text is from: which textbook or article? | |
| Jun 18, 2021 at 17:04 | review | Close votes | |||
| Jun 20, 2021 at 17:09 | |||||
| Jun 18, 2021 at 15:54 | history | asked | Ailiy Evan | CC BY-SA 4.0 |