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Ville Salo

Researcher at University of Turku.

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25 For $x$ irrational, is $a_{n} =\sum_{k=1}^{n}(-1)^{⌊kx⌋}$ unbounded? Apr 26
15 If the center of a finite group is trivial, are there two elements whose centralizers intersect trivially? Apr 24 '18
12 Is homeomorphism of simplicial complexes semidecidable? Sep 13 '18
11 Can matrices over $F[G]$ have infinite order when $G$ is periodic? Sep 2 '19
11 Does the Angel have to be really smart? Jun 2
11 Homeomorphisms and “mod finite” Jul 4
7 Every mathematician has only a few tricks Jun 16
7 What is the Borel complexity of this set? Jun 18
7 Is a product of Følner sets Følner? Jan 4
6 Do mixing homeomorphisms on continua have positive entropy? Oct 17 '19
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