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cs.CG2022
Intersection Searching amid Tetrahedra in Four Dimensions
Esther Ezra, Micha Sharir
We develop data structures for intersection queries in four dimensions that involve segments, triangles and tetrahedra. Specifically, we study three main problems: (i) Preprocess a…
cs.CG2022
Intersection Queries for Flat Semi-Algebraic Objects in Three Dimensions and Related Problems
Pankaj K. Agarwal, Boris Aronov, Esther Ezra +2
Let be a set of flat (planar) semi-algebraic regions in of constant complexity (e.g., triangles, disks), which we call plates. We wish to preproces…