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Kervaire Conjecture on Weight of Group via Fundamental Group of Ribbon Sphere-Link
Abstract
Akio Kawauchi
Kervaire conjecture that the weight of the free product of every non-trivial group and the infinite cyclic group is not one is affirmatively confirmed by confirming affirmatively Conjecture Z on the knot exterior introduced by Gonzàlez Acuna and Ramırez as a conjecture equivalent to Kervaire conjecture.