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Murasugi sum
Student-Run Geometry/Topology Seminar| Speaker: | Fabiola Manjarrez-Gutierrez, UC Davis | 
| Location: | 2112 MSB | 
| Start time: | Thu, Feb 16 2006, 1:10PM | 
The Murasugi sum is an operation to combine two knots, which depends on a choice of Seifert surfaces for the knots and also on a choice of disks along which to do the sum. Gabai proved that under certain conditions many properties of the Seifert surfaces are preserved under Murasugi sum. I will define Murasugi sum and state some basic properties and applications of this powerful tool.
