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Null-homologous exotic surfaces in 4-manifolds (1310.1838v3)

Published 7 Oct 2013 in math.GT

Abstract: In this paper we exhibit infinite families of embedded tori in 4-manifolds that are topologically isotopic but smoothly distinct. The interesting thing about these tori is that they are topologically trivial in the sense that each bounds a topologically embedded solid handlebody. This implies that there are stably ribbon surfaces in 4-manifolds that are not ribbon.

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