Nicolas Essis-Breton

less info

network profile

1,362 reputation

413

bio	website	neblink.wordpress.com
	location	Montreal, Canada
	age	29
visits	member for	1 year, 9 months
	seen	2 hours ago
stats	profile views	534

I'm a graduate math student at Concordia University, Montreal.

summary answers questions tags badges favorites bounties reputation activity

130 Questions

votes activity newest

8	Sum of product of binomial coefficient
5	Does $f_n \to 0$, a.e., implies $\int_{\mathbb R} \sin(f_n(x)) dx \to 0$, when each $f_n \in L^1$
5	Show the Fourier transform is continuous in the Schwartz space $\mathcal S(\Bbb R)$
5	Show a $\sigma$-algebra contains the Borel sets : with $(a,\infty)$ or $(-\infty,b)$?
5	Recurrence relation: composition of a polynomial function

view more

1,362 Reputation

+10	Finding the range of a vector valued function
+5	Show $5z^n=e^z$ has a finite number of zero in $\{a<\Im z < v\}$ and $\{a < \Re z < b \}$
+15	Show the map $f(x)=\frac12 (x+1/x)$ has an attractive fixed point in $(0,\infty)$
+5	Mean number of particle present in the system: birth-death process, $E(X_t\|X_0=i)$, $b_i=\frac{b}{i+1}$, $d_i=d$

view more

5 Answers

votes activity newest

1	Show $g(a)= \operatorname*{arg}_{b \in B} \, f(a,b)=0$ is continuous when $g(a)$ is single-valued and $f$ continuous
1	Show $f \in L^p$ implies there is a set $E$ and a function $g$ for which $f=f\chi_E+g$ with $m(E)<\infty$ and $\|g\|\le 1$
0	Prove inequality using optional sampling
0	How does one give a mathematical talk?
0	Expectation of a stopping time uniquely determined by a function

50 Tags

1 measure-theory × 23	0 brownian-motion × 10
1 real-analysis × 17	0 sequences-and-series × 9
1 analysis × 10	0 stochastic-processes × 9
0 fourier-analysis × 29	0 stochastic-calculus × 9
0 probability-theory × 24	0 complex-analysis × 8

view more

11 Accounts

$Mathematics Stack Exchange$	Mathematics	1,362 rep	413
$TeX - LaTeX Stack Exchange$	TeX - LaTeX	320 rep	8
	Stack Overflow	190 rep	19
	Quantitative Finance	168 rep	6
	Cross Validated	128 rep	5

17 Badges

recent class name

Constituent	Critic
Popular Question	Autobiographer
Caucus	Tumbleweed
Suffrage	Enthusiast
Quorum	Civic Duty

view more

0 Active bounties

active offered earned

This user has no active bounties

1,303 Votes Cast

all time			by type			month		week		day
1,303	up		503	question		215		49		14
0	down		800	answer		215		49		14

Technology			Life / Arts	Culture / Recreation	Science	Other
Stack Overflow Server Fault Super User Web Applications Ask Ubuntu Webmasters Game Development TeX - LaTeX	Programmers Unix & Linux Ask Different (Apple) WordPress Answers Geographic Information Systems Electrical Engineering Android Enthusiasts IT Security	Database Administrators Drupal Answers SharePoint User Experience Mathematica more (14)	Photography Science Fiction & Fantasy Seasoned Advice (cooking) Home Improvement more (13)	English Language & Usage Skeptics Mi Yodeya (Judaism) Travel Arqade (gaming) Bicycles Role-playing Games more (22)	Mathematics Cross Validated (stats) Theoretical Computer Science Physics more (7)	Stack Apps Meta Stack Overflow Area 51 Stack Overflow Careers

site design / logo © 2013 stack exchange inc; user contributions licensed under cc-wiki with attribution required

rev 2013.5.24.702