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math.CO2025
An asymptotic rigidity property from the realizability of chirotope extensions
Xavier Goaoc, Arnau Padrol
Let be a finite full-dimensional point configuration in . We show that if a point configuration has the property that all finite chirotopes realizable by addi…
cs.CG2025
Hitting and Covering Affine Families of Convex Polyhedra, with Applications to Robust Optimization
Jean Cardinal, Xavier Goaoc, Sarah Wajsbrot
Geometric hitting set problems, in which we seek a smallest set of points that collectively hit a given set of ranges, are ubiquitous in computational geometry. Most often, the set…