Uniqueness and shooting classification of non-collapsed steady solitons on line bundles

Let LkL_k be a line bundle over (M^,ω)(\hat{M},\omega), with k>p(M^,ω)k>p(\hat{M},\omega), and consider the class of metrics specified in the paper, normalized by b(0)=1b(0)=1. A steady soliton is non-collapsed if it is the complete non-collapsed steady soliton described in the main theorem. Uniqueness and shooting conjecture. The complete non-collapsed steady soliton is unique up to scaling and isometry in this metric class. Moreover, there exists f0Rf^{\ast}_0\in\mathbb{R} such that f(0)>f0f”(0)>f^{\ast}_0 yields an incomplete metric, f(0)=f0f”(0)=f^{\ast}_0 yields a complete non-collapsed steady soliton, and f(0)<f0f”(0)<f^{\ast}_0 yields a complete collapsed steady soliton. The conjecture is supported by numerical integration of the soliton equations, but no proof or resolution is given here.

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Primary source

Alexander Appleton, “A family of non-collapsed steady Ricci solitons in even dimensions greater or equal to four”, arXiv:1708.00161 (2022).

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