<?xml version="1.0" encoding="UTF-8"?>
<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>The magnitude of a metric space: from category theory to geometric measure theory · HackerPapers discussions</title><link>https://hackerpaper.kaipfister.de/p/1606.00095/</link><description>Collected HN comments and submissions linking this paper.</description><language>en</language><lastBuildDate>Mon, 02 Nov 2026 11:16:22 GMT</lastBuildDate><atom:link href="https://hackerpaper.kaipfister.de/p/1606.00095/feed.xml" rel="self" type="application/rss+xml" /><item><title>The magnitude of a metric space: from category theory to geometric measure theory — mentioned by tutfbhuf</title><link>https://news.ycombinator.com/item?id=36837028</link><guid isPermaLink="false">urn:hackerpapers:mention:1606.00095:36837028</guid><pubDate>Sun, 23 Jul 2023 16:42:02 GMT</pubDate><description>&lt;p&gt;This presentation is getting into the idea of &amp;quot;magnitude&amp;quot; the invariant from category theory and how it can be used in mathematical ecology, especially when we&amp;#x27;re trying to max out diversity. It&amp;#x27;s put forward as a possible answer to a head-scratcher in mathematical ecology: How do we find the maximum diversity if we&amp;#x27;re given a list of n species and a similarity matrix? The presentation gives us a whole range of views on biodiversity, making it clear that we need to think about both common and rare species when we&amp;#x27;re figuring out diversity. It hints that this magnitude idea might give us a…&lt;/p&gt;&lt;p&gt;&lt;a href="https://hackerpaper.kaipfister.de/p/1606.00095/"&gt;Paper and discussion history&lt;/a&gt;. A mention is not an endorsement.&lt;/p&gt;</description><category>math.MG</category></item></channel></rss>
