Mathematics
Christophe Leuridan's user avatar
Christophe Leuridan's user avatar
Christophe Leuridan's user avatar
Christophe Leuridan
  • Member for 6 years, 7 months
  • Last seen this week
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All Questions Answers
Score Newest
answer
11
If Series $\sum \sqrt\frac{a_n}{n}$ converges then $\sum a_n$ converges?
May 24, 2022
answer
9
Sophomore's Eternal Dream $\int_0^1\cdots\int_0^1 (t_1t_2\cdots t_n)^{t_1t_2\cdots t_n} dt_1 dt_2\cdots dt_n$
Jul 2, 2022
answer
8
Conjecture: If matrix $M$ has entries (left to right, then top to botom) $\sin 1,\sin 2,\sin 3,\dots,\sin (n^2)$, where $n\ge 3$, then $\det M = 0$.
Sep 11
answer
8
Integration cannot be replaced by discrete sum
Jan 25
answer
8
Inequality on Brownian motions and Ito integrals
Apr 25, 2022
answer
7
Integrating the exponential of distance to a convex bounded set
May 20
answer
7
How to get the distribution of a random variable from the distribution of their summation?
Jan 6
answer
7
Concentration of measure on sphere: Bounding the probability of a large angle
Oct 27, 2022
answer
6
Does $A=B$ imply that the rank of $A$ equals the rank of $B$?
Apr 24, 2022
answer
6
Sequence of continuous fractions 1 , 1/2 , (1/2)/(3/4) ...
Dec 29, 2022
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17
Can nonnegative functions $f(x,y,z)$ be written as a product of pairwise functions $u(x,y) v(y,z) w(x, z)$?
8
If $n=2m$, what is the order of the permutation $\sigma(k)=2k , \quad \sigma(m+k)=2k-1$
8
Solving a limit about sum of series
7
Square root of prime numbers
7
Forcing the uniqueness of a solution of an ODE

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