[PHK_seminar] [Cohomology]Wednesday 15 Apr, Alexei Kotov

Igor Khavkine khavkine at math.cas.cz
Sun Apr 19 22:36:46 CEST 2026


Dear All,

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

   https://youtu.be/kVw3P_0wEqI

The slides are available from

   https://users.math.cas.cz/~hvle/PHK/Kotov-GeometryDGmanifold2026.pdf

Both links have also been recorded at the ResearchSeminars announcement

   https://researchseminars.org/talk/PHK-cohomology-seminar/153/

Best,

Igor

On 4/15/26 11:26 AM, Petr Somberg via phk_seminar wrote:
> 
>   This is just the reminder of our seminar today, 13.30!
> 
> ----------------------------------------------------------------------
> 
>> Cohomology in algebra, geometry, physics and statistics
>> Wednesday, 15 April 2026 - 13:30 to 14:30
>> Place: Institute of Mathematics of ASCR, Žitná 25, Praha 1, the  blue
>> lecture  room +ZOOM meeting
>>
>> Speaker: Alexei Kotov, University of Hradec Kralove
>> Title: Geometry through the Lens of dg Manifolds
>> Abstract
>> Differential graded (dg) manifolds, or $Q$-manifolds, provide a powerful
>> framework for unifying diverse structures in modern geometry. By equipping
>> a graded supermanifold with an odd homological vector field $Q$
>> (satisfying $Q^2 = 0$), we obtain a robust language
>> capable of "taming" complex geometric problems. In this talk, I will
>> demonstrate the versatility of the dg-framework by exploring its
>> underlying geometry and its applications across several domains,
>> specifically focusing on how it characterizes complex structures and
>> foliations.
>>
>>
>> -------------------------------------------------------------------------
>> ------------------------------------------------------------
>>
>>
>>
>> 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
>>
>>
>>
>> Meeting ID:99598413922
>> Passcode:Galois
>>
>>
>>
>> -------------------------------------------------------------------------
>> --
>>
>>
>> On  Wednesday,   April  22, Pierre Bieliavsky  shall give a talk on
>> Kinematical Lie algebras and symplectic symmetric spaces
>>
>>
>>
>>
>>
>>
>>
>>
>> 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
>> _______________________________________________
>> phk_seminar mailing list phk_seminar at math.cas.cz
>> https://list.math.cas.cz/listinfo/phk_seminar
>>
>>
> 
> 
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