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Jae Choon Cha (POSTECH, Korea) “Milnor invariants and rational Whitney towers”
by Egor Pifagorov - Sunday, 17 September 2017, 04:15 PM
 
СЕМИНАР ЛАБОРАТОРИИ ИМ. ЧЕБЫШЕВА

Пн. 25 сентября 17:15 в ауд. 413 (14-я линия В.О., 29)

Jae Choon Cha (POSTECH, Korea)

“Milnor invariants and rational Whitney towers”

I will discuss a complete classification of links in the 3-space modulo Whitney towers in a rational homology 4-ball. This gives a new geometric interpretation of the Milnor invariants, and an alternative viewpoint to the higher order Arf invariant conjecture.

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