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math.CA2026
Lebesgue constants of Leja sequences: a universal lower bound and improved upper bounds on the real line
Camille Pouchol
We prove a general lower bound for the Lebesgue constants of Leja sequences for every nonpolar compact set \(K\subset\mathbb C\): $\textstyle \limsup_{n \to+\infty} Λ_n \, \s…
math.CA2024
Random Leja points
Camille Pouchol
Leja points on a compact are known to provide efficient points for interpolation, but their actual implementation can be computationally challenging. So-call…