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Splitting numbers for links and Heegaard Floer homology
Geometry/Topology| Speaker: | Evgeny Gorsky, UC Davis |
| Location: | 2112 MSB |
| Start time: | Wed, Nov 23 2016, 3:10PM |
The splitting number of a link is the minimal number of crossings between different components that should be changed to transform it to a split link. I will describe a lower bound for the splitting number using Heegaard Floer homology and present an infinite family of links with vanishing linking numbers and arbitrary large splitting numbers. The talk is based on a joint work with Maciej Borodzik.