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Iosif Pinelis's user avatar
Iosif Pinelis's user avatar
Iosif Pinelis's user avatar
Iosif Pinelis
  • Member for 10 years, 9 months
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About

My main interests are in inequalities and extremal problems in probability theory.

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answer
84
Does Pinelis' inequality (1994) exist?
Nov 3, 2020
answer
36
$\mathbb{E}[X^4]=1$, $X,Y$ iid, what's the best upper bound of $\mathbb{E}[(X-Y)^4]$?
Apr 29, 2018
answer
26
How can a mathematician handle the pressure to discover something new?
Mar 11, 2018
answer
25
Is this differential identity known?
Jun 7, 2015
answer
24
When are Fourier coefficients monotonic?
Dec 25, 2020
answer
23
Conjecture: If circular coins of any sizes are in a convex polygonal frame, with each coin touching exactly one edge, then all the coins can move
Jan 11, 2023
answer
23
Conjecture: Given any five points, we can always draw a pair of non-intersecting circles whose diameter endpoints are four of those points
Nov 29, 2023
answer
22
Why doesn't mathematics collapse even though humans quite often make mistakes in their proofs?
Aug 18, 2019
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22
"Insanely increasing" $C^\infty$ function with upper bound
Nov 26, 2018
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21
How do we explain the use of a software on a math paper?
May 16, 2019
Top Meta posts
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2
39
Deleting others' work
16
Best of MathOverflow, or papers inspired by MathOverflow
10
Rationale for reputation change on "my" reputation page that says 'User was removed'
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19
Conjecture: Given any five points, we can always draw a pair of non-intersecting circles whose diameter endpoints are four of those points.
14
Conjectured formula for the Fabius function
11
Does the following inequality hold true?
8
creating delimiters and inequality signs
7
Surjective measures