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Alex Ravsky's user avatar
Alex Ravsky's user avatar
Alex Ravsky's user avatar
Alex Ravsky
  • Member for 11 years
  • Last seen this week
  • Lviv, Ukraine
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My papers: arXiv, Google Scholar.

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11
Non meager rectangle
Jun 15, 2015
answer
10
Dividing a cake between $n-1$, $n$, or $n+1$ guests
Aug 14, 2023
answer
10
Desargues ten point configuration $D_{10}$ in LaTeX
Jul 28, 2023
question
10
A rainbow perfect matching in an edge-colored graph with spanning color classes
Jul 6, 2021
answer
9
Mark some vectors in $\mathbb{R}^n$ in a way that every orthonormal basis has an odd number of marked vectors
Jul 31
answer
9
Are topological PID's Noetherian?
Sep 22, 2023
answer
7
The cardinal characteristic $\mathfrak r_{(X,f)}$ of a dynamical system
Oct 5, 2021
answer
7
Convergent net in a quasi-uniform space which is not Cauchy
Oct 1, 2017
answer
6
A conjecture related to Frankl's conjecture
Dec 4
answer
6
Minimum number of common edges of triangulations
Sep 30, 2023
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105
How to prove every closed interval in R is compact?
28
Graph theoretic proof: For six irrational numbers, there are three among them such that the sum of any two of them is irrational.
25
Graph theoretic proof: For six irrational numbers, there are three among them such that the sum of any two of them is irrational.
23
Do Hausdorff spaces that aren't completely regular appear in practice?
21
Integer function which takes every value infinitely often