omar

less info

network profile

235 reputation

7

bio	website
	location
	age
visits	member for	4 months
	seen	Mar 23 at 10:46
stats	profile views	30

summary answers questions tags badges favorites bounties reputation activity

14 Questions

votes activity newest

3	Trying to understand Hilbert Spaces…
3	If $X$ is normal and $A$ is a $F_{\sigma}$-set in $X$, then $A$ is normal. How could I prove this theorem?
3	Is this topology stronger than the cofinite topology?
2	How can the empty set be open in the definition of the cofinite topology?
2	Urysohn Metrization Theorem: show that $F$ is continuous.

view more

235 Reputation

+5	Urysohn's Metrization Theorem: What is needed to show that $F$ is an embedding?
+5	Is this topology first countable?
+5	What $n$ s.t. this topology satisfies the separation axiom $T_n$?
+10	Having a tough time finding the area between two curves.

view more

4 Answers

votes activity newest

4	Every retraction is a quotient map?
1	Having a tough time finding the area between two curves.
0	Test for convergence $\sum_{n=1}^{\infty} \frac{1}{2^\sqrt{n}}$
0	Let $f$ be a continuously differentiable $2π$ -periodic real valued function on the real line

8 Tags

4 general-topology × 14	0 definition × 2
1 calculus × 2	0 hilbert-spaces
1 integral	0 convergence
0 real-analysis × 2	0 sequences-and-series

1 Account

$Mathematics Stack Exchange$

Mathematics

235 rep

7

7 Badges

recent class name

Commentator	Editor
Critic	Scholar
Teacher	Student
Supporter

0 Active bounties

active offered earned

This user has no active bounties

26 Votes Cast

all time			by type
26	up		6	question
0	down		20	answer

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 2013.5.22.697