[PHK_seminar] [Cohomology]Wednesday 14 Oct, Katharina Neusser

[Igor Khavkine]

Dear All,

The video recording of the talk by Katharina Neusser from last week is 
now available on YouTube at

   https://youtu.be/wgrvIi92dwM

The link has also been recorded at the ResearchSeminars announcement

   https://researchseminars.org/talk/PHK-cohomology-seminar/162/

Best,

Igor

On 10/12/26 1:00 PM, sender of seminar announcement via phk_seminar wrote:
> Wednesday, 14 October 2026 - 13:30 to 14:30
> Place: Institute of Mathematics of ASCR, Žitná 25, Praha 1, ZOOM meeting
> 
> Speaker: Katharina Neusser, Masaryk University
> Title: Geometry of conic connections
> 
> Abstract
> 
> A conestructure on a complex manifold $M$ is given by a closed 
> submanifold $\mathcal C\subset \mathbb P TM$ of the projectived tangent 
> bundle of $M$ which is submersive over $M$. Such geometric structures 
> arise naturally in differential and algebraic geometry and, when they 
> do, they are often equipped with a conic connection which specifies a 
> distinguished family of curves on $M$ in directions of $\mathcal C$. A 
> classical example is the null cone bundle of a holomorphic conformal 
> structure equipped with the conic connection induced by the null- 
> geodesics. In a joint work with Jun-Muk Hwang we defined an important 
> local invariant for so-called characteristic conic connections, namely 
> the cubic torsion. In this talk I will give a geometric interpretation 
> of the cubic torsion and will discuss some applications. This talk is 
> based on a joint work with Andreas Cap.
> 
> ----------------------------------------------------------------------------------------------
> 
> We shall open the seminar room and ZOOM meeting at 13.15 for coffee and 
> close ZOOM at 15.30
> 
> Join Zoom Meeting
> 
> https://cesnet.zoom.us/j/99598413922? 
> pwd=YXNFbk50aVhleXhWSGtISFViLytRUT09 <https://cesnet.zoom.us/ 
> j/99598413922?pwd=YXNFbk50aVhleXhWSGtISFViLytRUT09>
> 
> Meeting ID:99598413922
> 
> 
> 
> For more information see the seminar web page at
> https://www.math.cas.cz/index.php/events/seminar/16
> 
> Cohomology in algebra, geometry, physics and statistics mailing list
> phk_seminar at math.cas.cz
> https://list.math.cas.cz/listinfo/phk_seminar@math.cas.cz
> 
> 
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