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math.NA2026
Convex Bernstein limits and sharp recovery on expanding intervals
Matthew J. Colbrook, Catherine Drysdale
We determine when approximation by convex polynomials on expanding intervals converges to best approximation on the real line by convex entire functions of exponential type at most…
math.CO2026
Crown graphs maximise the representation number of bipartite graphs
Matthew J. Colbrook, Catherine Drysdale
The representation number of a graph is the least positive integer for which its vertices can be arranged in a word, each occurring times, so that two distinct letters alte…