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Yakov Shklarov
  • Member for 7 years, 3 months
  • Last seen this week
  • Victoria, BC, Canada
7 votes
Accepted

Ceiling of logarithm of ceiling of x

5 votes

What are good resources to learn about convergence spaces?

4 votes

Check if $(2,\pi/2)$ lies on $r=2\cos(2\theta)$

3 votes
Accepted

How do I find a closed form expression for a sum

3 votes
Accepted

Question about the formal definition of a domain of a function.

3 votes

Linear congruence $8x\equiv 21\pmod{24}$

3 votes

Proving $x^2+x+1\gt0$

3 votes

Proof that $M$ and $M^{T}$ are similar

3 votes
Accepted

Formula for the number of numbers $\le n$ with same prime factors as $n$?

3 votes

Gnarly equality proof? Or not?

3 votes
Accepted

Asymptotic for combinatorial function

3 votes

Finding the sum $\sum_{j=k}^n (-1)^{j+k}\binom{n}{j}\binom{j}{k}$

2 votes

Moving terms outside of a floor

2 votes
Accepted

Notation for partial function set.

2 votes
Accepted

Find the properties of the sum $\sum_{k=0}^n (-1)^k\binom{m+1}{k}\binom{m+n-k}{n-k}$

2 votes

Volume of a torus using three integrals

2 votes

From eigenvectors to eigentensors. Is eigentensor (hypermatrix) theory developed and useful?

2 votes
Accepted

Is my understanding of "subshifts of finite type" correct?

1 vote

What is a fundamental system of neighborhoods?

1 vote

Entropy of a Probability Measure after Push-forward

1 vote
Accepted

If $x \in X$ belongs to at most $k$ sets $\{A_i\}_{i = 1}^n \subset \mathcal{M}$, then $\sum_{i = 1}^n \mu(A_i) \le k$.

1 vote

Properties of outer product of two unit vectors? Why is there only one non-zero eigenvalue for such a matrix?

1 vote

Composition of an injective and surjective linear transformation on finite dimensional vector space.

1 vote
Accepted

If at some point on an integral the left and right hand limits do not exist, then what sort of "continuity" does the integral possess.

1 vote

I have a algorithm and from the post its time complexity is: $\sum_{k=1}^{n}k\binom nk= n 2^{n-1}$

1 vote

Relation between a floor and a ceiling function for a problem

1 vote

How can I prove the concavity of $f(p_1,p_2,\ldots,p_n) = \sum_{i = 1}^n p_i(1-p_i)$?

1 vote

Summation of a fraction containing a summation operator

0 votes

What do you call this equivalence relation? $A \simeq B$ if $A = P^t BP$ for some invertible matrix $P$

0 votes

Convergence of $\sum \sin\frac{(-1)^n}{n^p}$