The criss-cross method can take Ω(nd) pivots
SCG '04 Proceedings of the twentieth annual symposium on Computational geometry
Object and image indexing based on region connection calculus and oriented matroid theory
Discrete Applied Mathematics - Special issue: Advances in discrete geometry and topology (DGCI 2003)
Object and image indexing based on region connection calculus and oriented matroid theory
Discrete Applied Mathematics - Special issue: Advances in discrete geometry and topology (DGCI 2003)
Checking oriented matroid isomorphism by means of canonical labeling
Discrete Applied Mathematics
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