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Nov 24 at 11:24 comment added aleph2 Thank you for your detailed answer. I also wanted some research directions to learn more on realted topics.
Nov 24 at 11:22 vote accept aleph2
Nov 24 at 11:22
Nov 23 at 22:52 history edited Iosif Pinelis CC BY-SA 4.0
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Nov 22 at 19:22 history edited Iosif Pinelis CC BY-SA 4.0
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Nov 22 at 19:16 history edited Iosif Pinelis CC BY-SA 4.0
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Nov 22 at 19:11 history edited Iosif Pinelis CC BY-SA 4.0
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Nov 22 at 18:54 comment added Iosif Pinelis @JochenGlueck : You are quite right, and this is the crucial point. I have now made this explicit, by adding the proof of (1). Thank you for your comment.
Nov 22 at 18:53 history edited Iosif Pinelis CC BY-SA 4.0
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Nov 22 at 18:12 comment added Jochen Glueck For those who are, as me, wondering where the vector space property is used: it is the first displayed formula, where the distance of $x_n$ and $x_{n+1}$ is estimated. This does not hold in metric spaces.
Nov 22 at 17:12 history answered Iosif Pinelis CC BY-SA 4.0