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BCLC
  • Member for 9 years, 11 months
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126 votes

GRE Subject Test - Past Papers, Books, Advice

14 votes

Probability and measure theory

13 votes

Minimum of a quadratic form

8 votes
Accepted

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

8 votes
Accepted

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

8 votes

liminf and limsup in probability

8 votes

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

7 votes

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

6 votes

The derivatives of the logarithm of a moment generating function

6 votes

Simplifying square of integral in general

5 votes

How can I get better at integration?

5 votes

Properties of symmetric projection matrices

5 votes

What are some interpretations of Von Neumann's quote?

5 votes
Accepted

Using Markov Property in solving PDE/SDE

5 votes

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

5 votes
Accepted

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

5 votes

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

5 votes

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

5 votes
Accepted

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

5 votes

What is the definition of a subspace?

4 votes

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

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 $3$?

4 votes

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

4 votes

Initial Boundary Value Problem for Wave Equation

4 votes
Accepted

Clarification on Borell-Cantelli lemma

4 votes
Accepted

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

4 votes

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

4 votes

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

3 votes
Accepted

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

3 votes
Accepted

Characteristic Function of an Ornstein Uhlenbeck process

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