Beni Bogosel

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10,486 reputation

21671

bio	website	mathproblems123.wordpress.com
	location	Chambery, France
	age	25
visits	member for	2 years, 3 months
	seen	Apr 24 at 21:47
stats	profile views	1,501

PHD - interests: PDE, Free boundaries, Shape Optimization

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271 Answers

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20	Elementary proof of $m^n\neq n^m$ for almost all natural numbers $m\neq n$
17	For complex $z$, $\|z\| = 1 \implies \text{Re}\left(\frac{1-z}{1+z}\right) = 0$
17	Inequality: $(x + y + z)^3 \geq 27 xyz$
14	How are the integral parts of $(9 + 4\sqrt{5})^n$ and $(9 − 4\sqrt{5})^n$ related to the parity of $n$?
13	Evaluating $\displaystyle\lim_{x \to 0}\frac{1-\cos (1- \cos x)}{x^4}$

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10,486 Reputation

+10	Convex function necessary condition
+5	IMO 2011 problem 6 Geometry
+10	why $\arctan(nx)$ doesn't converge uniformly?
+10	limit of a recursively defined function

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71 Questions

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39	Double sum - Miklos Schweitzer 2010
34	Putting many disks in the unit square
20	Old AMM problem
18	“Immediate” Applications of Differential Geometry
15	Picard's Little Theorem Proofs

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147 Tags

154 calculus × 43	59 linear-algebra × 22
150 real-analysis × 57	50 analysis × 20
101 homework × 40	50 sequences-and-series × 20
74 algebra-precalculus × 13	50 elementary-number-theory × 9
73 limit × 21	37 inequality × 13

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$Mathematics Stack Exchange$	Mathematics	10,486 rep	21671
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$TeX - LaTeX Stack Exchange$	TeX - LaTeX	265 rep	210
	Stack Overflow	197 rep	9
	Physics	150 rep	19

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