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Pietro Majer
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I am a professor of Mathematics at the University of Pisa, Italy.

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115
Suggestions for good notation
Oct 20, 2010
answer
74
German mathematical terms like "Nullstellensatz"
Apr 19, 2011
answer
53
A topologist is not a mathematician - a small question
Aug 8, 2014
question
45
The functional equation $f(f(x))=x+f(x)^2$
Dec 17, 2010
answer
44
What is your favorite proof of Tychonoff's Theorem?
May 30, 2010
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41
Is the sum $\sum\limits_{j=0}^{k-1}(-1)^{j+1}(k-j)^{2k-2} \binom{2k+1}{j} \ge 0?$
Jun 23, 2010
answer
41
Why do we teach calculus students the derivative as a limit?
Sep 27, 2010
answer
32
A counterexample for Sard's theorem in $C^1$ regularity
Dec 27, 2016
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31
Did ancient mathematicians know Euler's characteristic for convex polyhedra?
Jan 14, 2014
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30
For which maps $S^1\to S^1$ is the winding number defined?
Apr 12, 2014
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A truly amazing way of making the number 2016
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What's the difference between "cominciare" and "iniziare"?
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Cosa differenzia "inebriarsi" da "ubriacarsi"?
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Is sal ever neuter?
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Different greek cases for Theos

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