[PHK_seminar] [Cohomology]Wednesday 19 Feb, Daniel Beltita

[Igor Khavkine]

Dear All,

The video recording of the talk by Daniel Beltita from today is now 
available on YouTube at

   https://youtu.be/gAqaWvpbqWU

The slides are available from

   https://users.math.cas.cz/~hvle/PHK/Beltita_PHK-Seminar_online_2025.pdf

These links have also been recorded at the ResearchSeminars announcement

   https://researchseminars.org/talk/PHK-cohomology-seminar/120/

Best,

Igor

On 2/17/25 1:00 PM, sender of seminar announcement via phk_seminar wrote:
> Wednesday, 19 February 2025 - 13:30 to 14:30
> Place: ZOOM meeting
> 
> Speaker: Daniel Beltita, Institute of Mathematics "Simion Stoilow" of 
> the Romanian Academy of Sciences
> Title: On the integrability of transitive Lie algebroids
> 
> Abstract
> 
> We discuss an approach to the integration problem for general transitive 
> Lie algebroids using two basic ingredients: the Čech cohomology and the 
> generalization of smooth manifolds that was proposed by Raymond Barre 
> under the name of Q-manifolds. To this end we study the notion of Q- 
> principal bundle, i.e., a natural version of principal fibre bundles in 
> the theory of Q-manifolds. We then prove that every transitive Lie 
> algebroid arises from the Atiyah sequence of a Q-principal bundle and we 
> give the interpretation of that result in terms of groupoids. The 
> presentation is based on joint work with Fernand Pelletier.
> 
> ------------------------------
> 
> We shall open ZOOM at 13.15 for virtual coffee and close ZOOM at 15:00
> 
> 
> Join Zoom Meeting
> 
> 
> https://cesnet.zoom.us/j/99598413922?pwd=YXNFbk50aVhleXhWSGtISFViLytRU9 
> <https://cesnet.zoom.us/j/99598413922?pwd=YXNFbk50aVhleXhWSGtISFViLytRU9>
> 
> 
> 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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