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math.GT2016★ 3 cited
Generalizations of twists of contact structures to higher-dimensions via round surgery
Jiro Adachi
Twists of contact structures in dimension 3 and higher are studied in this paper from a viewpoint of contact round surgery. Three kinds of new modifications of contact structures w…
math.GT2016★ 2 cited
Plastikstufe with toric core
Jiro Adachi
Plastikstufes and overtwistedness for higher-dimensional contact manifolds are studied in this paper. It is proved that a contact structure is overtwisted if and only if there exis…