Mathematics
Marios Gretsas's user avatar
Marios Gretsas's user avatar
Marios Gretsas's user avatar
Marios Gretsas
  • Member for 7 years, 1 month
  • Last seen this week
  • Κρήτη, Greece
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All Questions Answers
Score Newest
answer
16
Examples of closed sets with empty interior
Dec 27, 2016
answer
15
Prove convergence of the sequence $(z_1+z_2+\cdots + z_n)/n$ of Cesaro means
Jul 1, 2017
answer
15
How to prove the sequence $\sqrt[n!]{n!}$ has a limit
Oct 24, 2019
answer
14
If $\ \sum_{k=1}^n m(E_k) > n-1,$ then prove that $\bigcap_{k=1}^n E_k$ has positive measure.
Aug 18, 2017
answer
14
Does $\sum_{n=1}^\infty a_n^2 \text{ converges },\ a_n \geq 0 \implies \sum_{n=1}^\infty \frac{a_n}{n} \text{ converges}$?
Nov 1, 2019
answer
13
Compute a limit without L'Hopital's rule $\lim_{x \to a} \frac{a^x-x^a}{x-a}$
Nov 25, 2017
answer
11
Interesting Proofs about Metric Spaces?
Jul 15, 2017
question
11
Example of a countable compact set in the real numbers [closed]
Sep 2, 2016
question
11
Convergence of a series of translations of a Lebesgue integrable function
Aug 23, 2017
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10
Pre-image of Hausdorff space is Hausdorff
Aug 22, 2017
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