<?xml version="1.0" encoding="UTF-8"?>
<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel>
<title>Ruadhaí Dervan — Neckpinch</title><link>https://neckpinch.com/authors/ruadhai-dervan/</link><description>New arXiv papers by Ruadhaí Dervan, from Neckpinch</description>
<atom:link href="https://neckpinch.com/authors/ruadhai-dervan/rss.xml" rel="self" type="application/rss+xml"/><lastBuildDate>Tue, 10 Nov 2026 04:10:28 GMT</lastBuildDate>
<item><title>The Kähler-Ricci flow and optimal degenerations</title><link>https://neckpinch.com/papers/1612.07299/</link><guid isPermaLink="false">arxiv:1612.07299</guid><pubDate>Wed, 21 Dec 2016 00:00:00 GMT</pubDate><description>Ruadhaí Dervan, Gábor Székelyhidi — We prove that on Fano manifolds, the Kähler-Ricci flow produces a &quot;most destabilising&quot; degeneration, with respect to a new stability notion related to the H-functional. This answers questions of Chen-Sun-Wang and He. We give two applications of this result. Firstly, we give a purely algebro-geometric formula for the supremum of Perelman&apos;s μ-functional on Fano manifolds, resolving a conjecture of Tian-Zhang-Zhang-Zhu as a special case. Secondly, we use this to prove that if a Fano manifold admits a Kähler-Ricci soliton, then the Kähler-Ricci flow converges to it modulo the action of automorphisms, with any initial metric. This extends work of Tian-Zhu and Tian-Zhang-Zhang-Zhu, where either the manifold was assumed to admit a Kähler-Einstein metric, or the initial metric of the flow was assumed to be invariant under a maximal compact group of automorphism.</description><category>Ricci flow</category><category>Kähler–Ricci flow</category><category>Ricci solitons</category><category>Kähler–Ricci solitons</category><category>Einstein metrics</category><category>Kähler geometry</category><category>Stability &amp; uniqueness</category><category>Kähler–Einstein &amp; K-stability</category></item>
</channel></rss>