Abstract
We apply Donaldson’s theorem on the intersection forms of definite 4–manifolds to characterize the lens spaces which smoothly bound rational homology 4–dimensional balls. Our result implies, in particular, that every smoothly slice 2–bridge knot is ribbon, proving the ribbon conjecture for 2–bridge knots.
Citation
Paolo Lisca. "Lens spaces, rational balls and the ribbon conjecture." Geom. Topol. 11 (1) 429 - 472, 2007. https://doi.org/10.2140/gt.2007.11.429
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