Pietro Majer's user avatar
Pietro Majer's user avatar
Pietro Majer's user avatar
Pietro Majer
  • Member for 13 years, 10 months
  • Last seen this week
  • Pisa, Italy
20 votes

Examples of simultaneous independent breakthroughs

19 votes
Accepted

Who first used the word "Simplex"?

19 votes
Accepted

Basis for the space of Harmonic homogeneous polynomial in N variables.

19 votes
Accepted

power series of the reciprocal... does a recursive formula exist for the coefficients

19 votes
Accepted

The vector field of a given flow

19 votes

Abstract thought vs calculation

19 votes

Solving a non linear equation

18 votes

Is a real power series that maps rationals to rationals defined by a rational function?

17 votes

Most harmful heuristic?

17 votes

Examples of common false beliefs in mathematics

17 votes
Accepted

Searching for an unabridged proof of "The Basic Theorem of Morse Theory"

17 votes
Accepted

$f'=e^{f^{-1}}$, again

17 votes
Accepted

Are these rings of functions isomorphic?

17 votes

Are uniformly continuous functions dense in all continuous functions?

17 votes
Accepted

Existence of an antiderivative function on an arbitrary subset of $\mathbb{R}$

17 votes

Understanding the condition $\frac{1}{p} + \frac{1}{q} = 1$ in the estimate $xy \le \frac{1}{p}x^p + \frac{1}{q}y^q$

16 votes
Accepted

Characterizing positivity of formal group laws

16 votes

The function $\sum_{0}^{\infty} x^n/n^n$

16 votes
Accepted

Analytic functions with integer coefficients

16 votes

Positivity of a finite sum involving Stirling numbers

16 votes

Uninteresting questions with interesting answers

16 votes

If $f$ is smooth and even then there exists a smooth function $g$ such that $f(x)=g(x^2)$

16 votes

How misleading is it to regard $\frac{dy}{dx}$ as a fraction?

16 votes
Accepted

When is Sobolev space a subset of the continuous functions?

15 votes

Converse to Banach's fixed point theorem?

15 votes

explicit big linearly independent sets

15 votes
Accepted

Is there a bound on the length of the longest Morse trajectory?

15 votes

Explicit Hamel basis of real numbers

15 votes

Counterexample for the Open Mapping Theorem

15 votes

Pythagorean 5-tuples

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