[PHK_seminar] [Cohomology]Wednesday 13 Nov, Yaroslav Bazaikin

[Igor Khavkine]

Dear All,

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

   https://youtu.be/GyH_qBrlFNg

The slides are available from

   https://users.math.cas.cz/~hvle/PHK/Bazaikin2024.pdf

These links have also been recorded at the ResearchSeminars announcement

   https://researchseminars.org/talk/PHK-cohomology-seminar/114/

Best,

Igor

On 11/11/24 1:00 PM, sender of seminar announcement via phk_seminar wrote:
> Wednesday, 13 November 2024 - 13:30 to 14:30
> Place: Institute of Mathematics of ASCR, Žitná 25, Praha 1, the blue 
> lecture room + ZOOM meeting
> 
> Speaker: Yaroslav Bazaikin, Jan Evangelista Purkyně University in Ústí 
> nad Labem
> Title: On Chern-Losik class for codimension two foliations
> 
> Abstract
> 
> Losik classes generalize characteristic classes of foliations using 
> Gelfand-Fuchs cohomology approach. The Chern-Losik class for foliations 
> of codimension one was constructed by Losik, and he also showed the non- 
> triviality of this class for a foliation with two leaves with a 
> hyperbolic holonomy group. In the talk the construction of the Chern- 
> Losik class to foliations of arbitrary codimension is done. The non- 
> triviality of the Chern-Losik class of codimension two foliations is 
> investigated. Examples of codimension two foliations with nontrivial 
> Chern-Losik class are constructed.
> 
> 
> The results were obtained jointly with Anton Galaev and Yuri Efremenko.
> 
> ------------------------------------------------------------------------
> 
> We shall open the seminar room + ZOOM at 13.15 for virtual coffee and 
> close the room at 15:00
> 
> 
> Join Zoom Meeting
> 
> 
> https://cesnet.zoom.us/j/99598413922?pwd=YXNFbk50aVhleXhWSGtISFViLytRU 
> <https://cesnet.zoom.us/j/99598413922?pwd=YXNFbk50aVhleXhWSGtISFViLytRUT09>9
> 
> 
> MeetingID:99598413922
> 
> 
> Passcode:Galois
> 
> 
> 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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