Bull. Korean Math. Soc. 2017; 54(6): 1927-1933
Online first article November 8, 2017 Printed November 30, 2017
https://doi.org/10.4134/BKMS.b160509
Copyright © The Korean Mathematical Society.
Heesang Park, Dongsoo Shin
Konkuk University, Chungnam National University
We prove that there are rational homology balls $B_p$ smoothly embedded in the $2$-handlebodies associated to certain knots. Furthermore we show that, if we rationally blow up the $2$-handlebody along the embedded rational homology ball $B_p$, then the resulting $4$-manifold cannot be obtained just by a sequence of ordinary blow ups from the $2$-handlebody under a certain mild condition.
Keywords: $2$-handlebody, knot, rational blow-down, rational homology ball
MSC numbers: 57R40, 57R55
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