Generalized spiral-point conjecture for Donaldson sections

From papers

For kk points on S2S^2, take generalized spiral points with cylindrical coordinates (hi,θi)(h_i,\theta_i), let ziz_i be their complex coordinates, and define

pk=ek/2i(zzi)(1+zi2)1/2,qk=ek/2i(z+zi)(1+zi2)1/2.p_k=e^{k/2}\prod_i \frac{(z-z_i)}{(1+|z_i|^2)^{1/2}},\qquad q_k=e^{k/2}\prod_i \frac{(z+z_i)}{(1+|z_i|^2)^{1/2}}.

Regard (pkwk,qkwk)(p_k\mathbf{w}^k,q_k\mathbf{w}^k) as sections and normalize them by a constant so that

max(pk2+qk2)=1.\max\left(\lVert p_k\rVert^2+\lVert q_k\rVert^2\right)=1.

Generalized spiral-point conjecture. After this normalization, the sections (pkwk,qkwk)(p_k\mathbf{w}^k,q_k\mathbf{w}^k) satisfy the conditions in Theorem. The construction is supported by numerical verification and partial results, but the source gives no proof or resolution of the full assertion.

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Sources & referencesView supporting material

Primary source

R. Sena-Dias, “Estimated transversality and rational maps”, arXiv:math/0511716 (2006).

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