Piecewise description conjecture for the radial infinity-harmonic Dirichlet solution

Let L>1L>1, and let RpR_p be the solutions to the pp-approximation of the Dirichlet problem, with R=limpRpR=\lim_{p\rightarrow\infty}R_p. For Rj=R(sj)R_j=R(s_j) and Rj=dR/ds(sj)R'_j=dR/ds(s_j), suppose RR satisfies the conditions of Proposition 3DIR. Radial solution conjecture. There is a one-parameter family RsR_{s^*}, s(0,)s^*\in(0,\infty), satisfying those conditions; the Dirichlet data R(h)=R0R(h)=R_0, with 0<R0h0<R_0\leq h, is realized for exactly one ss^*. The proposed solution is zero on 0ss0\leq s\leq s^*, then follows the stated linear and ODE pieces. The result is presented as a conjecture because the details were only sketched, and remains open.

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Primary source

Georgios Daskalopoulos and Karen Uhlenbeck, “Analytic properties of Stretch maps and geodesic laminations”, arXiv:2205.08250 (2025).

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