Degree conjecture for degenerate sphere maps

Let H:S2n1S2N1H:\mathbb{S}^{2n-1}\rightarrow\mathbb{S}^{2N-1} be a sphere map with linearly independent components, and let s>0s>0. Degree conjecture. If HH is ss-degenerate, then HH has degree Ns1N-s-1. This proposes a general degree formula for positively degenerate sphere maps, extending the quadratic conclusion established in the preceding theorem for constantly (N3)(N-3)-degenerate maps from S3\mathbb{S}^{3} under its stated non-containment hypothesis; the conjecture is presented without a resolution in the source.

Sources & referencesView supporting material

Primary source

Giuseppe della Sala, Bernhard Lamel, Michael Reiter and Duong Ngoc Son, “On highly degenerate CR maps of spheres”, arXiv:2210.13525 (2022).

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