John Hughes (Oxford) will give the geometry seminar on 2nd February at 2pm in the Salle des Profs (9th floor building NO). John’s title is “Towards a Taub-Bolt to Taub-NUT via Ricci flow with surgery” and his abstract is below.
A conjecture of Holzegel, Schmelzer and Warnick states that there is a Ricci flow with surgery connecting the two Ricci flat metrics Taub-Bolt and Taub-NUT. We will present some recent progress towards proving this conjecture. This includes showing for the first time the existence of a Ricci flow with surgery with local topology change from CP^2-point to R^4.