Pietro Majer

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Name Pietro Majer
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I am a professor at the University of Pisa, Italy.
33

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Asymptotic growth of a certain integer sequence

jan 23 at 13:06 Pietro Majer 19.7k●1●24●69

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I know that you know…

nov 24 at 8:07 John Bentin 770●1●4●11

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Banach spaces with few linear operators ?

jul 5 10 at 20:26 Yemon Choi 8,456●1●19●45

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Infinite convex combinations in a Banach space

feb 22 11 at 12:17 Pietro Majer 19.7k●1●24●69

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389

Answers
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62
Suggestions for good notation
41
German mathematical terms like “Nullstellensatz”
27
Need help proving that $\sum\limits_{j=0}^{k-1}(-1)^{j+1}(k-j)^{2k-2} \binom{2k+1}{j} \ge 0$
25
Why do we teach calculus students the derivative as a limit?
22
What is your favorite proof of Tychonoff’s Theorem?
22
Square of a continuous map
20
Making N (set of all positive integers) a group
20
Expressions involving Eulerian numbers of the second kind: trying to show $\sum_{m=0}^{n} (-1)^m(m)m!(2n-m-2)!\left\langle\left\langle n\atop m\right\rangle\right\rangle\neq0$ for even $n$. (2)
18
What if Current Foundations of Mathematics are Inconsistent?
18
Are there such numbers?
17
A Hölder continuous function which does not belong to any Sobolev space
17
How do professional mathematicians learn new things?
16
The vector field of a given flow
14
Is a real power series that maps rationals to rationals defined by a rational function?
14
Noncombinatorial proofs of Ramsey’s Theorem?
13
Math puzzles for dinner (2)
13
Asymptotic approximation of $x^\alpha$ by entire functions
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is f a polynomial provided that it is “partially” smooth?
13
Pythagorean 5-tuples
13
Explicit Hamel basis of real numbers
12
Easier induction proofs by changing the parameter
12
Searching for an unabridged proof of “The Basic Theorem of Morse Theory”
12
ODE’s without a Lipschitz condition
12
is the limit of ergodic functions still ergodic?
12
How to compute \prod_{n=1}^{\infty} (1-p^{-n})
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Products of prime powers less than a number.
11
If $f$ is smooth and even then there exists a smooth function $g$ such that $f(x)=g(x^2)$
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Does any research mathematics involve solving functional equations?
11
Bounding largest eigenvalue
11
What is an isomorphism of Banach spaces?
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