Minimal-support variance conjecture for planar point-mass measures
Let be a finite point-mass probability measure on . Let be its finite support, let consist of support points having minimal mass, and let be the set of zeros of its Cauchy transform outside . Let denote the one-sided Hausdorff distance and let be the Chebyshev radius of .
Minimal-support variance conjecture.
The source notes that a related stronger claim fails for three-point measures and presents this restricted statement as one that still implies Sendov's conjecture. Its resolution is not given.
References
Primary source
Dmitry Khavinson, Rajesh Pereira, Mihai Putinar, Edward B. Saff and Serguei Shimorin, “Borcea's variance conjectures on the critical points of polynomials”, arXiv:1010.5167 (2011).
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