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Don Draper
  • Member for 5 years, 3 months
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4 votes
3 answers
292 views

How to find a Lyapunov function in this case?

3 votes
3 answers
86 views

Find all complex numbers satisfying $z\cdot\bar{z}=41$, for which $|z-9|+|z-9i|$ has the minimum value

3 votes
2 answers
237 views

Cauchy a.e. implies existence of a measurable function to which this sequence converges a.e

3 votes
2 answers
530 views

Is this a Riemann sum (if so, I can't figure out which one)?

3 votes
1 answer
76 views

Please help me understand the following transition in the limit

2 votes
1 answer
386 views

Convergence in Egorov's theorem

2 votes
3 answers
108 views

Calculate the limit including binomial coefficients

2 votes
3 answers
89 views

Prove there exists some $x_0$ for a differentiable function

2 votes
1 answer
28 views

Counting dissimilar championship outcomes

2 votes
3 answers
85 views

Logarithmic inequality (looking for a better solution)

2 votes
2 answers
142 views

Is this a proper way of using L'Hôpital's rule?

2 votes
2 answers
353 views

Using the Lebesgue dominated convergence theorem

2 votes
2 answers
133 views

Calculate $\lim\limits_{n\to\infty}\sum\limits_{0\leqslant k\leqslant2n}\frac k{k+n^2}$ using Riemann sums [duplicate]

2 votes
1 answer
65 views

Construct an example of a composition

2 votes
1 answer
235 views

Prove Lebesgue integrability for an (almost) trigonometric function

2 votes
2 answers
96 views

Prove that this set of points is finite or countable

2 votes
1 answer
103 views

Probability that a randomly selected card is an ace (Bayes theorem)

1 vote
0 answers
85 views

Solving a differential equation with generalized functions

1 vote
1 answer
35 views

Manipulations with convergence a.e.

1 vote
1 answer
197 views

Prove Lebesgue integrability

1 vote
1 answer
368 views

Prove that the Cauchy - Schwarz inequality is true for complex valued functions

1 vote
1 answer
41 views

Prove that this system of subsets is a $\sigma$ algebra

1 vote
1 answer
1k views

An example of Lebesgue integration

1 vote
2 answers
43 views

Express $\{f\leq c\}$ as a countable intersection

1 vote
1 answer
87 views

Geometric probability (dealing with integer numbers)

1 vote
2 answers
570 views

Number of pairs of distinct strings with length $L$ and $K$ distinct characters

1 vote
1 answer
110 views

Find the minimum positive root of $\sin{3x}=a$ ($a>0)$, given that there exist two roots differing by $\frac{\pi}{4}$.

1 vote
0 answers
47 views

Check whether two trees given by their adjacency matrices are isomorphic

1 vote
1 answer
41 views

Find out whether the game is fair [closed]

1 vote
1 answer
277 views

Using the Maclaurin series when calculating limits