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Catalog of Oriented Matroids |
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Glossary |
Glossary
Affine Oriented Matroid
An affine oriented matroid is a triple
,
where is an
oriented matroid (with
ground set and set of
covectors ) and an element
of , where is not a
loop.
Then is called the infinity element.
The equivalence classes of affine oriented matroids which are defined by
isomorphisms which map infinity elements to
infinity elements are called
abstract dissection types.