4,257 reputation
1225
bio website math.univ-bpclermont.fr/…
location Clermont-Ferrand, France
age 29
visits member for 3 years, 7 months
seen 2 days ago

I don't really smoke pipe, this is just for style.

Also I'm a Phd student in Number Theory. My current research revolves around Harmonic Analysis on p-adic groups, Automorphic Forms and Langlands Program.


Dec
14
comment Number of ways to choose 6 books out of 20 books such that no 2 are adjacent books
As I understand the solution, $1$ always denotes a pair (book, no book), except if for the last $1$ in the sequence (for example $101$ means (book, no book, no book, book) and $110$ means (book, no book, book, no book)). With this convention there is no ambiguity and no need for the $2$.
Oct
22
awarded  Nice Answer
Oct
13
reviewed Approve Understanding Borel sets
Sep
30
reviewed Approve Weird limit problem
Jun
13
reviewed Approve Intro to Real Analysis
Jun
5
comment Find the $f(x)$ from the given information
I have no idea if this might be useful, but if you denote $g(x) = \frac{x-1}{x}$ then $g^{-1}(x) = g(g(x)) = \frac{1}{1-x}$ and $g(g(g(x))) = x$.
Jun
5
reviewed Approve Understanding ω-consistent and ω-incomplete theory
Jun
5
reviewed Approve Taylor series for $\sinh1$
Jun
5
revised Find the $f(x)$ from the given information
added 11 characters in body
Jun
5
reviewed Edit Help me prove congruency
Jun
5
revised Help me prove congruency
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Jun
5
reviewed Reject Determining if certian properties of a topological space pass to its image under a quotient map.
Jun
5
reviewed Approve Help me prove congruency
Jun
4
reviewed Approve Trigonometric regression
Jun
4
reviewed Approve Just another inequality
May
29
awarded  Nice Answer
May
14
revised Solving a congruence $x^{17} \equiv 243 \pmod{257}$
added 2 characters in body; edited title
May
14
reviewed Approve Solving a congruence $x^{17} \equiv 243 \pmod{257}$
May
6
reviewed Approve Prove that for every integer $n \ge 1$, $1 + \frac{1}{\sqrt{2}}+\frac{1}{\sqrt{3}}+ … +\frac{1}{\sqrt{n}}\le 2\sqrt{n}$
May
6
reviewed Approve How to do projections of data in MATLAB?