| 51-XX |
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Geometry {For algebraic geometry, see 14-XX; for differential geometry, see 53-XX} |
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51Dxx |
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Geometric closure systems |
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51D05 |
Abstract (Maeda) geometries |
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51D10 |
Abstract geometries with exchange axiom |
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51D15 |
Abstract geometries with parallelism |
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51D20 |
Combinatorial geometries and geometric closure systems [See also 05B25, 05B35] |
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51D25 |
Lattices of subspaces and geometric closure systems [See also 05B35] |
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51D30 |
Continuous geometries, geometric closure systems and related topics [See also 06Cxx] |
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51D99 |
None of the above, but in this section |
