[PHK_seminar] [Cohomology]Wednesday 26 Nov, Roman Golovko

[Igor Khavkine]

Dear All,

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

   https://youtu.be/o_vgPIuiCoI

Our apologies for the poor quality of the first couple of minutes of the 
video (missing audio and some jumps). The rest of the video is fine.

The link has also been recorded at the ResearchSeminars announcement

   https://researchseminars.org/talk/PHK-cohomology-seminar/142/

Best,

Igor

On 11/26/25 12:21 PM, Petr Somberg via phk_seminar wrote:
> 
>   This is a gentle remainder of our seminar starting soon!
> 
> --------------------------------------------------------------------------
> 
> 
>> Cohomology in algebra, geometry, physics and statistics
>> Wednesday, 26 November 2025 - 13:30 to 14:30
>> Place: Institute of Mathematics of ASCR, Žitná 25, Praha 1, the  blue
>> lecture  room  + ZOOM meeting
>>
>> Speaker: Roman Golovko, Charles University
>> Title: Non-regular Lagrangian concordances between Legendrian knots
>> Abstract
>>
>>
>> For a while, it was an open question whether a Lagrangian cobordism with
>> a non-empty positive end can be decomposed into a concatenation of
>> elementary pieces:
>>
>> traces of Legendrian isotopies, isolated standard-unknot births inducing
>> Lagrangian 0-handle attachments, and Legendrian surgeries inducing
>> Lagrangian 1-handle
>>
>>
>> attachments. We answer this question negatively. This is joint work with
>> Georgios Dimitroglou Rizell.
>> ----------------------------------------------------------
>>
>>
>>
>> We shall open  the seminar room  and  ZOOM meeting at 13.15 for (virtual)
>> coffee and close ZOOM at 15.00
>>
>>
>> Join Zoom Meeting
>>
>>
>>
>> https://cesnet.zoom.us/j/99598413922?pwd=YXNFbk50aVhleXhWSGtISFViLytRUT09
>>
>>
>>
>> Meeting ID:99598413922
>> Passcode:Galois
>>
>>
>>
>>
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>>
>>
>>
>>
>>
>> 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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> 
> 
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