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math.GT2021
The relative Whitney trick and its applications
Christopher William Davis, Patrick Orson, JungHwan Park
We introduce a geometric operation, which we call the relative Whitney trick, that removes a single double point between properly immersed surfaces in a -manifold with boundary.…
math.GT2021
Abelian invariants of doubly slice links
Anthony Conway, Patrick Orson
We provide obstructions to a link in arising as the cross section of any number of unlinked spheres in . Our obstructions arise from the multivariable signature, the Bla…