[PHK_seminar] [Cohomology]Wednesday 12 Feb, Alexei Kotov

[Petr Somberg]

 This is just a gentle remainder of our seminar, starts in 15 minuts!

> Cohomology in algebra, geometry, physics and statistics
> Wednesday, 12 February 2025 - 13:30 to 14:30
> Place: Institute of Mathematics of ASCR, Žitná 25, Praha 1, the  blue
> lecture  room  + ZOOM meeting
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> Speaker: Alexei  Kotov, University of Hradec Kralove
> Title: Invariants of piecewise linear curves (joint with Yaroslav
> Bazaikin)
> Abstract
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> The problem of classification of geometric objects under the action of a
> group or a pseudogroup of transformations has a long history and dates
> back to the Erlangen program of Felix Klein. We propose a "discrete"
> version of this theory, in which, instead of smooth structures, we
> consider their piecewise smooth approximations, consisting of "simple"
> blocks. In this talk, we will focus on the classification of the
> piecewise linear curves in an affine space under the action of the affine
> transformation group. The obtained "discrete" invariants in the limit
> give known differential invariants for a similar problem in a smooth
> case. ------------------------------
> We shall open  the seminar room and  ZOOM at 13.15 for  coffee and close
> ZOOM at 15:00
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> Join Zoom Meeting
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> https://cesnet.zoom.us/j/99598413922?pwd=YXNFbk50aVhleXhWSGtISFViLytRU9
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> MeetingID:99598413922
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> 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
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>
> Cohomology in algebra, geometry, physics and statistics mailing list
> phk_seminar at math.cas.cz
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