[PHK_seminar] [Cohomology]Wednesday 6 Mar, Aliaksandr Hancharuk

[Igor Khavkine]

Dear All,

The video recording of the talk by Aliaksandr Hancharuk from this week 
is now available on YouTube at

   https://youtu.be/ZYwQzPUEZuU

The link has also been recorded at the ResearchSeminars announcement

   https://researchseminars.org/talk/PHK-cohomology-seminar/103/

Best,

Igor

On 3/4/24 13:00, sender of seminar announcement via phk_seminar wrote:
> Wednesday, 6 March 2024 - 13:30 to 14:30
> Place: ZOOM metting
> 
> Speaker: Aliaksandr Hancharuk, Jilin University (China)
> Title: Koszul-Tate resolutions and trees
> 
> Abstract
> 
> Given a commutative algebra O, a proper ideal I, and a resolution of O/I 
> by projective O-modules, we construct an explicit Koszul-Tate 
> resolution. We call it the arborescent Koszul-Tate resolution since it 
> is indexed by decorated trees. When the O-module resolution has finite 
> length, only finitely many operations are needed to construct the 
> arborescent Koszul-Tate resolution---this is compared with the classical 
> Tate algorithm, which may require infinitely many such computations. 
> Examples and applications are discussed. This is based on a joint work 
> with Camille Laurent-Gengoux and Thomas Strobl.
> 
> 
> --------------------------------------------------------------------------------------------------------------------------------------------
> 
> We shall open ZOOM at 13.15 for virtual coffee
> 
> Join Zoom Meeting
> 
> https://cesnet.zoom.us/j/99598413922?pwd=YXNFbk50aVhleXhWSGtISFViLytRUT09 <https://cesnet.zoom.us/j/99598413922?pwd=YXNFbk50aVhleXhWSGtISFViLytRUT09>
> 
> 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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