Skip to main content
Mathematics
Marc van Leeuwen's user avatar
Marc van Leeuwen's user avatar
Marc van Leeuwen's user avatar
Marc van Leeuwen
  • Member for 14 years, 1 month
  • Last seen this week
Profile Activity

Stats

120,627
reputation
8.8m
reached
3,060
answers
10
questions
Communities
View all

About

professor of mathematics at the Université de Poitiers (France)

Badges

View all badges
8
gold badges
186
silver badges
374
bronze badges

Top tags

View all tags
3,874
Score
1,360
Posts
44
Posts %
1,955
Score
520
Posts
17
Posts %
1,403
Score
321
Posts
10
Posts %
1,150
Score
441
Posts
14
Posts %
783
Score
185
Posts
6
Posts %
509
Score
110
Posts
4
Posts %

Top posts

View all questions and answers
answer
165
How to learn from proofs?
Jul 7, 2012
answer
91
Why doesn't induction extend to infinity? (re: Fourier series)
Jan 11, 2012
question
78
Determinant of a rank $1$ update of a scalar matrix, or characteristic polynomial of a rank $1$ matrix
Aug 21, 2014
answer
75
Are "if" and "iff" interchangeable in definitions?
Nov 14, 2013
answer
75
Are $10\times 10$ matrices spanned by powers of a single matrix?
Sep 19, 2014
answer
72
Is $\mathbb{Z}[x]$ a principal ideal domain?
Sep 21, 2013
answer
66
Two dice thrown, one comes up 6
Aug 1, 2014
answer
60
How can I evaluate $\sum_{n=0}^\infty(n+1)x^n$?
Jan 15, 2014
answer
56
Sylvester rank inequality: $\operatorname{rank} A + \operatorname{rank}B \leq \operatorname{rank} AB + n$
Feb 9, 2013
question
52
Can commuting matrices $X,Y$ always be written as polynomials of some matrix $A$?
Mar 10, 2013

Top Meta posts

2
3
10
Should any question that is [big-list] be community wiki?
9
Question deleted by OP for no apparent reason; how to find out why?
7
What to do when there are conflicting answers and I still don't know the correct answer to a question?
5
Only one answer allowed: which one to accept?

Top network posts

View all network posts
99
Is there any concrete relation between Gödel's incompleteness theorem, the halting problem and universal Turing machines?
88
Does C++ compiler remove/optimize useless parentheses?
87
Is "women men girls love meet die" a valid sentence?
76
How do I pass a unique_ptr argument to a constructor or a function?
47
In C++11, does `i += ++i + 1` exhibit undefined behavior?