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Tuesday 11 November 2025 - 10:00 to 11:30 <br />
Place: IM, konÃrna
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Speaker: Wojciech Bielas, University of Silesia in Katowice, Poland<br />
Title: On some modifications of the Niemytzki plane
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Abstract <br />
<p>It will be shown that if the usual tangent discs of the Niemytzki plane are replaced by triangles with bounded angles, then the resulting space is not homeomorphic to the former. This is obtained by analysing the growth of functions used to define neighbourhoods of points lying on the the real line.</p>
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For more information see the seminar web page at <br />
https://www.math.cas.cz/index.php/events/seminar/6
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Set Theory and Analysis mailing list <br />
settfa@math.cas.cz <br />
https://list.math.cas.cz/listinfo/settfa@math.cas.cz
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