The seminar "Interactions" joins the teams of two universities: that of Cologne, and that of Marburg, therefore the name "ColMar* Interactions". The goal is to explain some very recent developments in the field of equivariant topology and equivariant symplectic geometry.

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The organisers are:

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Oliver Goertsches (goertsch@mathematik.uni-marburg.de)

Panagiotis Konstantis (pako@mathematik.uni-marburg.de)

myself (sabatini@math.uni-koeln.de)

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It will be held online via Zoom on the dates and times listed below.

If you are interested and would like the link to the Zoom-Meeting, please send us an email. 

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The schedule, so far, is the following (click on the title to see the abstract):

21.10.21, 14:30-16:00: Nicholas Lindsay (U. of Cologne), "Hamiltonian S^1-actions on complete intersections"

17.11.21, 12:30-14:00: Anton Ayzenberg (HSE University), "Face posets of equivariantly formal torus actions"

09.12.21, 14:30-16:00: Chris McDaniel (Endicott College), "A GKM Description for the Equivariant Coinvariant Ring of a Pseudo Reflection Group"

16.12.21, 14:30-16:00: Lisa Jeffrey (U. of Toronto), "Poisson maps between character varieties: gluing and capping"

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Please note that the time zone above is GMT+1  

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* It is also worth noticing that in Italian "colmare" means "to bridge", and we like bridges, because they allow interactions...

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Link to our seminar in the past year:

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https://www.silvia-sabatini.com/seminar-interactions-ws2021

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