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Results tagged with finite-geometry
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user 20598
Galois geometry, finite projective and affine spaces, polar spaces, partial geometries, generalized polygons, near polygons, and other finite incidence geometries.
10
votes
What is the smallest cardinality of a self-linked set in a finite cyclic group?
The difference cover problem has been better studied in the context of $\mathbf{Z}$. Redei, Renyi, and others in the 40s asked for the size of the smallest set $A$ such that $A-A$ covers $\{1,2,\dots, …
- 9,647
2
votes
Accepted
Kantor's Singer cycle theorem
Ah, point I was overlooking is that in this case, $|\Delta|$ must be prime: this comes out of the application of Burnside-Schur.
To spell out the rest of the proof (no doubt one way of many), we know …
- 9,647