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Aug 23, 2020 at 2:16 vote accept Thomas Yang
Sep 18, 2019 at 10:10 comment added 喻 良 @FedorPetrov That is what I meant. The method can also be used to show that the linear function can be replaced with a ``regular" elementary function ($\sin$, $arcsin$ etc).
Sep 18, 2019 at 7:47 comment added Fedor Petrov For $t=0$ almost any $\delta\in (0,1)$ works: not appropriate values are covered by countably many null sets. Well, I guess this may be what 喻 良 essentially says, but without special terminology which I am sorry to be not familiar with.
Sep 18, 2019 at 1:21 comment added Nate Eldredge FYI LaTeX-style accenting like \H{o} doesn't work in text on this site, only in math. If you want ő you have to actually type it (if you don't know how to type it on your keyboard, your OS may have a character map tool).
Sep 18, 2019 at 1:19 history edited Nate Eldredge CC BY-SA 4.0
deleted 3 characters in body; edited title
Sep 18, 2019 at 0:55 comment added 喻 良 Here is the most recent survey: jstor.org/stable/44153069. Question 1 was answered. I have a positive answer to Question 2 under certain set theoretical assumptions.
Sep 18, 2019 at 0:51 answer added 喻 良 timeline score: 2
Sep 18, 2019 at 0:49 comment added Thomas Yang @喻良 Thanks! Do you have a reference for that?
Sep 18, 2019 at 0:45 comment added 喻 良 Your conjecture is correct. Actually $t$ can be 0.
Sep 18, 2019 at 0:34 history asked Thomas Yang CC BY-SA 4.0