User BCLC

125 votes

GRE Subject Test - Past Papers, Books, Advice

answered Sep 11, 2016 at 9:32

14 votes

Probability and measure theory

answered Nov 15, 2015 at 16:13

12 votes

Minimum of a quadratic form

answered Oct 20, 2018 at 11:44

8 votes

liminf and limsup in probability

answered May 3, 2018 at 12:22

8 votes

Accepted

How did they get the term $(n+1)^3$ in the step of inductive proof which says $\sum_{k=1}^{n+1} k^3=\sum_{k=1}^n k^3 + (n+1)^3$?

answered Jun 14, 2018 at 7:21

8 votes

Is $\{\varnothing\}$ a subset of $\varnothing$, the empty set?

answered May 15, 2015 at 16:05

8 votes

Accepted

What is the difference between the projection onto the column space and projection onto row space?

answered May 7, 2016 at 9:10

7 votes

Example of a general random variable with finite mean but infinite variance

answered Nov 26, 2015 at 2:03

6 votes

The derivatives of the logarithm of a moment generating function

answered Dec 23, 2015 at 20:08

5 votes

Simplifying square of integral in general

answered Mar 16, 2018 at 7:12

5 votes

How can I get better at integration?

answered Aug 29, 2016 at 11:14

5 votes

Properties of symmetric projection matrices

answered Oct 11, 2016 at 15:10

5 votes

What is the definition of a subspace?

answered Nov 11, 2022 at 18:54

5 votes

If $f,g$ are uniformly continuous prove $f+g$ is uniformly continuous but $fg$ and $\dfrac{f}{g}$ are not

answered May 8, 2014 at 15:00

5 votes

Accepted

Integrate: $ \int \frac{\mathrm{d}x}{\ln(x)} $

answered Oct 4, 2014 at 8:58

5 votes

Whether a $2 \times 2$ matrix of rank $1$ has a zero eigenvalue

answered Dec 16, 2014 at 0:58

5 votes

Asking for Various proofs of uncountability of $[0,1]$

answered Jan 6, 2015 at 13:02

5 votes

Accepted

Prove $k^2>k+1$ by induction

answered Mar 1, 2015 at 22:23

5 votes

What are some interpretations of Von Neumann's quote?

answered Dec 4, 2016 at 7:08

4 votes

Accepted

Prove by cases that for all positive integers $n^n > n^{n-1}$

answered Oct 12, 2016 at 18:57

4 votes

What is the Difference Between a Version and a Modification of a Stochastic Process?

answered May 1, 2018 at 16:54

4 votes

Accepted

What happened in this step of the inductive proof that for all integers $n$ is true that $n^3 - n$ is evenly divisible by $3$?

answered Sep 8, 2018 at 11:16

4 votes

Show that the function $f: \mathbb {N} \to \mathbb {N}$ given by $f(n) = n + 2$ is not onto

answered Aug 8, 2018 at 14:22

4 votes

In probability theory, how may we define a law (without need of defining a random variable first)?

answered Nov 14, 2022 at 15:39

4 votes

Find the minimum value of the quadratic form $x^TMx$ and the corresponding $x$, where $M$ is a symmetric matrix

answered Oct 23, 2018 at 2:15

4 votes

Accepted

Using Markov Property in solving PDE/SDE

answered Dec 13, 2015 at 21:06

4 votes

Initial Boundary Value Problem for Wave Equation

answered Nov 17, 2015 at 22:53

4 votes

Accepted

Clarification on Borell-Cantelli lemma

answered Nov 20, 2015 at 14:40

3 votes

Accepted

Probability that any $n$ independent events occur

answered Oct 26, 2016 at 5:11

3 votes

Accepted

Sampling without replacement - Sec 3.5, Chap.3, Blitzstein and Hwang, Intro to Probability

answered Oct 24, 2016 at 22:33

Stack Exchange Network

765 Answers

GRE Subject Test - Past Papers, Books, Advice

Probability and measure theory

Minimum of a quadratic form

liminf and limsup in probability

How did they get the term $(n+1)^3$ in the step of inductive proof which says $\sum_{k=1}^{n+1} k^3=\sum_{k=1}^n k^3 + (n+1)^3$?

Is $\{\varnothing\}$ a subset of $\varnothing$, the empty set?

What is the difference between the projection onto the column space and projection onto row space?

Example of a general random variable with finite mean but infinite variance

The derivatives of the logarithm of a moment generating function

Simplifying square of integral in general

How can I get better at integration?

Properties of symmetric projection matrices

What is the definition of a subspace?

If $f,g$ are uniformly continuous prove $f+g$ is uniformly continuous but $fg$ and $\dfrac{f}{g}$ are not

Integrate: $ \int \frac{\mathrm{d}x}{\ln(x)} $

Whether a $2 \times 2$ matrix of rank $1$ has a zero eigenvalue

Asking for Various proofs of uncountability of $[0,1]$

Prove $k^2>k+1$ by induction

What are some interpretations of Von Neumann's quote?

Prove by cases that for all positive integers $n^n > n^{n-1}$

What is the Difference Between a Version and a Modification of a Stochastic Process?

What happened in this step of the inductive proof that for all integers $n$ is true that $n^3 - n$ is evenly divisible by $3$?

Show that the function $f: \mathbb {N} \to \mathbb {N}$ given by $f(n) = n + 2$ is not onto

In probability theory, how may we define a law (without need of defining a random variable first)?

Find the minimum value of the quadratic form $x^TMx$ and the corresponding $x$, where $M$ is a symmetric matrix

Using Markov Property in solving PDE/SDE

Initial Boundary Value Problem for Wave Equation

Clarification on Borell-Cantelli lemma

Probability that any $n$ independent events occur

Sampling without replacement - Sec 3.5, Chap.3, Blitzstein and Hwang, Intro to Probability