Characterizations of Some Combinatorial Geometries
We give several characterizations of partition lattices and projective geometries. Most of these characterizations use characteristic polynomials. A geometry is non—splitting if it cannot be expressed as the union of two of its proper flats. A geometry G is upper homogeneous if for all k, k = 1, 2,...
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| Format: | Others |
| Language: | English |
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University of North Texas
1992
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| Online Access: | https://digital.library.unt.edu/ark:/67531/metadc277894/ |