The discussion centers on the citation of the statement regarding smooth k-spheres embedded in R^n, specifically that "any smooth k-sphere embedded in R^n with 2n − 3k − 3 > 0 is unknotted." The original source is identified as a 1960 paper titled "Unknotting Spheres," which is linked in the discussion. Participants note that the concept of knottedness in spheres is primarily a codimension-2 phenomenon, supported by references to Zeeman's work.
PREREQUISITESMathematicians, topologists, and students studying knot theory, particularly those interested in the properties of spheres and their embeddings in higher dimensions.