The Maximum Size of Combinatorial Geometries Excluding Wheels and Whirls as Minors
We show that the maximum size of a geometry of rank n excluding the (q + 2)-point line, the 3-wheel W_3, and the 3-whirl W^3 as minor is (n - 1)q + 1, and geometries of maximum size are parallel connections of (q + 1)-point lines. We show that the maximum size of a geometry of rank n excluding the 5...
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| Format: | Others |
| Language: | English |
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University of North Texas
1989
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| Online Access: | https://digital.library.unt.edu/ark:/67531/metadc330849/ |