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Showing 1 to 1 of 1 for “"Casson towers"”.
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Casson towers and filtrations of the smooth knot concordance group
… filtrations of C are defined in terms of Casson towers, 4-dimensional objects which approximate disks in a precise manner. We establish several relationships between these new Casson tower filtrations and the various previously known filtrations of C, such as the n-solvable, positive, …