- antimatroid
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a formal system that describes processes in which a set is built up by including elements one at a time, and in which an element, once available for inclusion, remains available until it is included
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antimatroid
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Antimatroid — In mathematics, an antimatroid is a formal system that describes processes in which a set is built up by including elements one at a time, and in which an element, once available for inclusion, remains available until it is included. Antimatroids … Wikipedia
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Matroid — In combinatorics, a branch of mathematics, a matroid ( /ˈmeɪ … Wikipedia
Chordal graph — A cycle (black) with two chords (green). As for this part, the graph is chordal. However, removing one green edge would result in a non chordal graph. Indeed, the other green edge with three black edges would form a cycle of length four with no… … Wikipedia
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