Mathematics
Profile Activity
Meta user
Network profile
2,157
reputation
11
20

Alexander

Undergratuate studen of mathematics.

3
answers
140
questions
~31k
people reached
  • Member for 8 years, 2 months
  • 223 profile views
  • Last seen Jan 6 at 6:44

Communities (5)

Top network posts

We respect a laser-like focus on one topic.

Top tags (64)

Score 7
Posts 30
Posts % 21
Score 1
Posts 33
Score 0
Posts 17
Score 0
Posts 13
Score 0
Posts 12
Score 0
Posts 10
View all tags →

Top posts (143)

All Questions Answers
Votes Newest
8 Prove the inequality $|xy|\leq\frac{1}{2}(x^2+y^2)$ [duplicate] Aug 18 '13
7 How to show that $\frac{x^2}{x-1}$ simplifies to $x + \frac{1}{x-1} +1$ Jan 14 '13
7 Can $\le$ be used insted of < in the definition of continuity? Jan 19 '14
7 What is the topological properties of $\mathbb R $ that makes it uncountable (as compared to $\mathbb Q $)? Nov 6 '14
7 Equivalence of definition of measure concentrated on a set $A $ Oct 3 '14
6 How is Fubini's theorem used in the following proof? Oct 30 '14
5 Holomorphically simply connected implies simply connected Jul 1 '14
4 What is the Lebesgue measure of the set of numbers in $[0,1]$ that has two thirds of ones in their infinite base-2 expansion? Dec 13 '14
3 Equivalence of definitions of measurable function: preimage of open set vs preimage of Borel set? Nov 14 '14
3 A probability function is determined on a dense set- Where is density used in the following proof? Dec 24 '14
View all questions and answers →

Badges (31)

Gold

—

Silver

11

Rarest

Bronze

20

Rarest

View all badges →