Boundedness conjecture for geodesic nets on Riemannian manifolds
Boundedness conjecture for geodesic nets on Riemannian manifolds
Let be a complete Riemannian manifold. For a geodesic net on , let be its total length, its adjusted length, its diameter, and the number of unbalanced vertices. The adjusted length is the sum over edges , parametrized by arclength, of the integrals of , where is the injectivity radius of . Boundedness conjecture for geodesic nets on Riemannian manifolds. There exists a function , depending on but invariant under rescaling , such that the number of balanced vertices of does not exceed
In particular, if has injectivity radius , then the number of balanced vertices does not exceed
The adjustment accounts for collapsing injectivity radius, which gives counterexamples to unadjusted bounds on general manifolds. The conjecture remains open.
Sources & referencesView supporting material
Primary source
Alexander Nabutovsky and Fabian Parsch, “Geodesic Nets: Some Examples and Open Problems”, arXiv:1904.00483 (2019).
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